Song Yumeng went through so much hardship. When everyone was asleep at noon, she was still copying Su Xiaoxiao's math homework, cursing Yi Ran in a low voice.

"Damn Yi Shenjing, are you sick???"

After saying that, she turned her head and gave a hateful look to Yi Ran at the other end of the classroom. Seeing that she was sleeping soundly behind a pile of books, Song Yumeng felt unbalanced!

How could Yi Shenjing sleep while she had to copy homework so hard!!! You know, she hasn't done math homework for hundreds of years.

Song Yumeng stopped copying homework.

That's not right, why should she listen to Yi Shenjing so much and finish it if he says she has to? ? ?

Looking at her own exercise book on the table, Song Yumeng fell into deep thought.

Forget it! Anyway, there is only one question left to copy, and we will be done after copying it!

When Song Yumeng finished copying the last question, the wake-up bell had already started ringing, but everyone was still sleeping on the table and didn't want to get up.

Song Yumeng shook her hands that were sore from copying, and saw Yi Ran tilting his head and continuing to lie lazily on the table, so she picked up the exercise book and walked over.

She held Yi Ran's wrist, pulled her up from the table in revenge, and then walked out of the classroom with her head down.

The classmates were still sleeping, and Song Yumeng didn't want to disturb them. Yi

Ran was sleeping soundly and was just awakened by the bell. His mind was still in a mess. At this time, he was pulled away by Song Yumeng. Yi Ran glanced at the wrist she was holding in a daze, and did not resist. He was pulled to the empty classroom next door.

Song Yumeng immediately let go of Yi Ran's wrist. Yi

Ran didn't react much. He rubbed his misty eyes and said lazily, "Come on, why are you not sleeping in the middle of the day? What's wrong with you?"

"How dare you say I'm crazy???" Song Yumeng pointed at herself, shocked, and then pointed at Yi Ran and scolded, "It's obviously you who are crazy. You insisted that I finish that math homework. Otherwise, I must be sick to pull you?!"

"Oh, then what about your homework? Have you finished it?"

"What else? Will I give you a chance to complain?" Song Yumeng was a little proud.

Yi Ran stretched out his left hand to her with a faint expression, "Let me check the exercise book."

"Take it." Song Yumeng rolled her eyes and handed the exercise book to Yi Ran.

Yi Ran blinked twice, her eyes suddenly cleared up, she carefully checked the exercise book, a small bump gradually appeared between her eyebrows.

Song Yumeng was playing with her hair, sometimes messing with her fingers, sometimes smoothing the ends of her hair, and she kept paying attention to Yi Ran's micro-expressions. Seeing her frowning and pursing her lips, the uneasiness in her heart was magnified, for fear that she would find out that she had copied the homework.

These two pages were filled with homework, and every formula step was correct. Yi Ran didn't know Song Yumeng's math level, and this guy didn't take math class seriously yesterday, it was obvious that he had copied.

Yi Ran closed the book, raised his eyes to stare at her, and exposed her mercilessly: "Tell me, Miss Song, whose homework did you copy?"

The exposed young lady pretended to be calm and retorted: "Stop talking nonsense! This was obviously done by me!" Although she was so powerful and spoke as if it were true, her face turned red.

Yi Ran saw Song Yumeng's blushing face clearly, but he didn't expose her. He smiled and opened the exercise book again, pointed to a question on it, and asked: "Then tell me, how to solve this trigonometric function problem."

"..." Song Yumeng curled her lips and had to bite the bullet and read it, "This question, uh, first, first..."

"First what?" Yi Ran said while tapping her head with his bent fingers. Song Yumeng said "Ouch", Yi Ran said with a smile, "I said you copied it, but you still don't admit it."

Song Yumeng's face turned redder, just like a ripe red apple. She crossed her arms, tilted her head, and pouted, not wanting to pay attention to this annoying Yi Shenjing.

Well, actually the eldest lady had nothing to say in rebuttal.

Yi Ran saw Song Yumeng's unconvinced look, sighed, and said, "Wait for me here."

Then he turned and left the empty classroom. When Song Yumeng was still wondering what she was going to do, Yi Ran had already returned, with a red pen and a draft book in her hand.

"Why are you still standing there? Come and listen to me." Yi Ran knocked on the empty table with a red pen.

Song Yumeng pouted, reluctantly moved over, and looked down at her writing the steps.

Yi Ran stood and bent down, one hand pressed on the draft book, and the other hand held a red pen to write the formula on it, while writing and talking: "This kind of trigonometric function can be applied with the formula. First use the sum and difference angle formula to expand it, and then use the double angle formula to simplify it. Do you understand?"

Don't look at the young lady listening very seriously, without blinking, in fact, she has long been unable to keep up with Yi Ran's pace.

What are the sum and difference angles and double angle formulas? ? ? She was still thinking about this question.

Yi Ran finished explaining the questions, and seeing that she was still confusedly looking at the formulas in the draft book, he tapped her head lightly with a red pen.

"Ouch!" Song Yumeng stared at Yi Ran with resentment, "Yi Shenjing, why are you tapping me? If you want to be beaten, just say it!"

"Stop pretending." Yi Ran smiled and asked, "Hey, I ask you, you don't even know what the sum and difference angle formulas are, what the double angle formula is?"

Song Yumeng lost all her arrogance and stared at Yi Ran unconvinced. She wanted to refute something to save face, but she couldn't find any reason in her mind.

She really didn't know these two formulas.

Yi Ran's clear eyes were filled with smiles as he wrote down all the formulas of trigonometric functions one by one in the draft book, and also specially noted the names of each formula and how it came about.

Yi Ran tore off the draft paper, put it in Song Yumeng's exercise book, and handed it to her, saying, "Here, I have written down all the formulas in it for you. If you can't remember the formulas, take it out and have a look."

Song Yumeng looked at Yi Ran in surprise, but finally took the exercise book and the draft paper from her.

Yi Ran said again: "Did you understand the question I just explained to you? If you don't understand, I'll explain it to you again."

"Alright, alright, you are happy to explain, but I don't want to listen!" Song Yumeng regained her momentum, "Also, don't be so nice to me, otherwise I will think you are up to no good."

Up to no good, Yi Ran chuckled, "Do you deserve my up to no good? Please, I am the representative of the math class, and I should be responsible for you."

When Yi Ran said the word responsible, Song Yumeng blushed for some reason, and directly scolded: "It's none of your business! Who asked you to be responsible for me?! You are not allowed to interfere in anything related to me in the future! Do you hear me?"

"Okay, okay, I don't care about you, young lady." Yi Ran shrugged helplessly, and then said, "But I can tell you that this kind of trigonometric function question is the key point. Not to mention this exam, even the college entrance examination will have a question every year. It will definitely be worth it if you learn it."

Song Yumeng raised her hand in the air in a particularly exaggerated way and said, "Tsk! You are the only one who knew that there would be an exam this time. Even Tang Seng can't predict the topic as well as you." Yi Ran folded

her hands and looked at Song Yumeng without saying a word, with a smile in her clear eyes.

Song Yumeng felt embarrassed by her gaze, and took the exercise book and walked away. When she reached the back door of the classroom and was about to leave, she stopped and turned around to look at Yi Ran with an ambiguous look. Seeing

Yi Ran's lips curled up a little, Song Yumeng turned her head back and walked out of the classroom with her feet raised. She walked slowly, and she was still a little puzzled in her heart.

What is Yi Shenjing laughing at? ? ?

...

The third class in the afternoon is the weekly class meeting. Usually everyone has self-study or theme class meetings, but Tang Xiangping used this class to re-elect class leaders.

"Students, let's vote to re-elect class leaders in this class." Tang Xiangping said on the podium, "The class representatives of each subject will not be re-elected. The objects of re-election this time are study committee members, class monitors, and league branch secretaries."

The rules of re-election are very simple. If you want to be a class leader, go up and give a self-speech. If there are many competitors, then other students will vote to decide.

It took a while for the class leaders such as study committee members and league branch secretaries to be finally elected, and the last position of class monitor was left.

There were many people competing for the class monitor, about ten, including Xu Yuan.

The other students finished their speeches one after another. When it was Xu Yuan's turn to go on stage, the class burst into warm applause.

Although the class was a science class, there were half and half male and female students among the fifty students. There were a lot of boys who liked Xu Yuan, and there were also girls who hated Xu Yuan, but there were only a few of them. Most of the girls had a neutral attitude.

"Tsk, the most pretentious white lotus in No. 1." Song Yumeng leaned against the wall with her arms folded and rolled her eyes, but the sound was blended into the applause and no one could hear it.

Xu Yuan on the stage could see Song Yumeng's disdain clearly. She just curled the corners of her mouth slightly, bowed 90 degrees, and then began her speech.

Xu Yuan's voice is very pleasant, like a gurgling stream, and her appearance is also very pure, which can easily arouse others' desire to protect her. This is also the reason why Xu Yuan is sought after by many boys in school.

When Xu Yuan was giving a speech, Liu Luoyang stared at her the whole time, and Xu Yuan also responded to him from time to time. This made Liu Luoyang think: Does Xu Yuan like me too?

And Song Yumeng was also going crazy below. Why did this green tea girl stare at her brother Liu Luoyang? She must be seducing people again!!!

Yi Ran had nothing to do, and she was looking through the sky outside the window. When she glanced behind to see if Tang Xiangping had noticed that she was slacking off, she accidentally saw Song Yumeng's gritting teeth.

Yi Ran rolled his eyes at her from a distance, and Tang Xiangping happened to see it. She thought the eyes were directed at her, so she glared at Yi Ran.

"..." Yi Ran quickly turned around and sat properly, speechless.

Could it be that Tang Seng thought I was rolling his eyes at her? What a pity.

After Xu Yuan finished his speech, there was another round of warm applause, and Liu Luoyang was cheering very seriously.

The bell for the end of class happened to ring at this time, and Tang Xiangping said: "During the break, you can discuss who to vote for, and you can vote as soon as the class starts."

After that, Tang Xiangping left. Yi Ran breathed a sigh of relief, thinking: Fortunately, Tang Seng didn't come to trouble me. But before she could calm down, she saw Song Yumeng walking towards her aggressively.

Yi Ran's first reaction was that something bad must be going on.