Thick inky clouds squeezed the sky, like a large silver-white net, impermeable to the wind. Occasionally, a drizzle of rain falls in the air, and the gloomy weather makes the mood a little dull.

In the second math class in the morning, the old man walked in slowly, as usual, except that there was more white hair between his temples and a sallow face.

Looking at his smiling face, I felt very uncomfortable at the thought that he might not be there in the future.

The old man continued to lecture us as if nothing had happened, more earnestly than before.

I've never listened to math class so seriously, and I cherish it because I know the deadline I'm going to lose.

After the old man finished talking about today's new content, as before, he would put a question on the blackboard based on the knowledge he had talked about today, and then motioned for everyone to raise their hands and write.

In the past, every time I came to this link, I would never raise my hand, and then I would watch those students who loved mathematics go up, and whether it was right or wrong, they would be praised by the old man.

Just as the old man had just written down a math problem and happily asked the audience who would like to come up and do it, I raised my hand without hesitation.

The old man's gaze immediately caught me, and he was a little surprised: "Huh! Why are you suddenly so positive today? ”

You guys?

I hurriedly looked around and found that in addition to me, there were Lin Wanwan and Liu Meiran, and they all raised their hands.

Everyone knows that in our dormitory, except for Tian Xiaorou, the rest of the math scores are very poor, and they usually don't dare to raise their hands to write questions in front of the blackboard, who knows that we all raised our hands today.

Seeing Liu Meiran and Lin Wanwan's raised right hands high, my tears almost came out again.

The old man nodded with great satisfaction: "It's rare that you are so active, then come on, the podium can also stand, and one person writes a place." ”

We looked at each other for a moment, then walked together to the podium.

We stood on either side of the blackboard and in the middle, looked at the question, wrote down the answer to the question carefully, did not discuss with each other, did not look at each other's answers, just silently finished the question, and then returned to our seats.

When we were all done, the old man gave us a thumbs up: "Excellent!" Although there are still some mistakes in the steps, it is good to make progress! ”

Looking at the old man's happy appearance, I felt even more sad.

At the end of class, I went to the toilet and came back to see a note in the math book on my desk.

See you at the entrance of the playground at one o'clock at noon.

I heard from them that the mathematics of the other two classes had been taught by the new teacher, and the old man finally felt relieved that he could not leave our class, so he wanted to insist on accompanying us until the half-term.

I had been hesitant to tell the class about the old man, and I didn't know what to say.

After lunch, I ran to the entrance of the playground, and from a distance, I saw Xu Promise with his hands in his school pants pockets, standing straight and waiting for me.

I trotted forward: "What's wrong?" ”

Xu promised to reply softly, "It's okay, let's go to the playground for a walk." ”

"Okay." I nodded.

In the afternoon, the light rain stopped, the sky cleared up a bit, and the mountains in the distance were clearly visible, and we stepped on the wet runway, blowing the oncoming wind.

"Promise," I whispered his name.

"Well, what's wrong?" Hearing Promise's gentle response, I looked down at my toes, "Are you afraid of death?" ”

Xu Promise thought for a while: "Probably, few people are not afraid, because we all have our own dreams that we want to accomplish, and there are people we want to protect." ”

I took a deep breath and said slowly: "My math teacher in the first year of junior high school was a very young, kind, and good-tempered male teacher. ”

It was something that happened when I was in junior high school, and I still remember some profound images.

Xu Yu was silent for a few seconds, I thought, he didn't know what to say at this moment, but I understood that he knew that I had something on my mind, so he specially called me out and walked with me.

"I had regrets last time, didn't I?" Promise asked me suddenly.

I was stunned for a moment and nodded.

"Then this time, at least there are no regrets, at least, we still have time." The voice of the promise was soft, but it dispelled the uneasiness and sorrow in my heart.

We didn't continue to talk about death in depth, we just walked around the playground in circles.

From the starting point, we go around and then we go back to the place where we started, just like when we come to this world, we walk around and we will go back to where we started, and so on.

On the last lap, Xu Yu suddenly took my hand: "This time, we face each other together." ”

I felt the warmth and strength of the palm of the promise, as if he would not let go of my hand no matter what happened on this road.

When I went back to the classroom in the afternoon, I promised to stand on the podium before class and tell my classmates that everyone would stay after school in the afternoon and have important things to say.

At noon, he promised to leave the things he told his classmates to him, and as the class president, he would take care of them.

After the last class in the afternoon, waiting for the teacher to come out of the classroom, promise to get up from his seat, then close the classroom door and stand on the podium.

"Be quiet." The voice of promise sounded, and the originally noisy classroom fell silent at once, and everyone's eyes were focused on him.

Xu Xu continued: "What I say next is serious, and I hope that this matter will become an eternal secret of our second class, and no one can say it. ”

Everyone began to wonder what it would be.

"The real reason why the old man can't continue to be with us—" Xu promised to pause as he said this, and then his voice became very soft, "It's that he has cancer, terminal." ”

"Ahh

"How so..."

This news made everyone not know how to react for a while...

yes, it was too sudden, too unacceptable.

"So... The last thing we can do for the old man is this half-term exam, to get the first place in the whole grade, and we need every student to work together. ”

After the promise was spoken, everyone fell silent.

Although we all knew that the old man could not continue to accompany us, no one expected such an outcome.

"Can we really..."

"But we're so different from the rest of the class..."

Everyone was uncomfortable and fell into a kind of self-doubt at the same time.

Xu promised: "There is still a month before the half-term exam, this month, I will focus on tutoring mathematics for everyone, if you don't understand anything, you can find me, I believe you can do it." ”

Looking at the calm promise on stage, at that moment, I felt that he was glowing all over.

"Me too."

While speaking, An Yu stood up from his seat.

His voice was not loud, but the whole classroom could hear it: "Count me in on the tutoring for everyone." ”