Lang Siyu hurriedly urged.

Sure enough, it's greasy.

Su Zimo glanced at the window suspiciously, "Okay, you can come over first!" ”

Seeing that Su Zimo was not pursuing it, Lang Siyu suddenly breathed a sigh of relief, moved to the desk with a ruffian, and clasped his hands, "Then let's start!" ”

"Okay." Su Zimo bowed his head, and sure enough, he began to help Lang Siyu study the test papers.

"This test paper is mainly based on competition questions, from your solution method and the correct rate, your mathematical foundation is very good, you don't need my tutoring at all, what I do only needs to give you a little hint, you look at this question, you can use the overall method of substitution, look at these unknown quantities as a whole, replace, solve them in turn, and try it."

Su Zimo stood up, left Lang Siyu in a seat, and encouraged.

"Oh." Lang Siyu nodded, took the pen from Su Zimo's hand, sat down, and studied the topic according to the method suggested by Su Zimo.

"Interchangeable, inverse function and even function." , Lang Siyu looked straight ahead as if he was counting eight characters, pinching his fingertips.

Seeing this, Su Zimo couldn't help but smile and shook his head, then his gaze wandered to the closed curtain, his eyes sank, and then walked towards the window.

Suddenly, Lang Siyu screamed excitedly.

"It's solved."

Su Zimo's hand, which was about to open the curtain, suddenly froze in the air.

"What are you doing, Zimo."

Seeing that Su Zimo's hand was about to touch the curtain, Lang Siyu's heart instantly rose to his throat, shook off the pen in his hand, stood up suddenly, and asked urgently.

"It's so stuffy in the house, open the window and let in for a while! You can see that your face is red. Su Zimo explained with a smile.

What the hell could make her so desperately protective?

"No, you don't."

Seeing that Su Zimo had already touched the curtain's hand, Lang Siyu rushed forward in a hurry.

"Whoa."

It's late, it's a shame.

In an instant, Lang Siyu suddenly felt the frost flying in June, and she shivered with cold.

"Siyu, what's wrong with you." Seeing that Lang Siyu looked loveless, Lang Siyu Su Zimo asked with some concern.

"Nope!" Lang Siyu, who came back to his senses, pretended to shrug his shoulders easily, looked at Su Zimo who was standing by the window, pulled the corners of his mouth and walked over calmly, "I didn't expect this window to open, and it would be so comfortable for the wind to blow into the house!" ”

Su Zimo smiled, "Yes! It's very comfortable, but why didn't you want to open it just now! ”

And why.

Lang Siyu rolled his eyes in disgust, leaned in front of the window and glanced out, the room directly opposite the window had already closed the curtains and turned off the light, Lang Siyu was relieved when he saw this, "I thought it would be cold when I opened the window!" ”

"Really?" Su Zimo smiled, and the two were silent for a few seconds, looking at the scenery outside the window side by side, but they didn't know that the young man in the dark was standing not far away and watching them.

"Zimo heard that Gu Zhesi had a fight today, right? How is he, and why is he fighting! Lang Siyu suddenly looked at Su Zimo and asked.

Looking at the worry in Lang Siyu's star-like eyes, Su Zimo was slightly stunned, and his heart was inexplicably a little surprised.

What he saw in her eyes, concern, distress, and that concern, distress turned out to be to another man.

Looking at Su Zimo, who was looking at her in a daze, Lang Siyu couldn't help poking his elbow, and asked with some concern, "What's wrong with you, why did you suddenly stop talking." ”

Su Zimo shook his head and smiled, "It's nothing, just think about how to explain to you about Zhesi's fight today, why do you think he is fighting!" ”

How do I know why that weirdo of him is fighting.

"I don't know." Lang Siyu told the truth.