pay attention to one's teacher
-Pay more attention to your teacher when having a class.
-I want to, but I can't concentrate on the subject.
flock around one's teacher
-The children flocked around their teacher.
-They were attracted deeply by the story the teacher told.
explain something to one's teacher
-I was absented from class yesterday because my mother was ill.
-You should have explained that to your teacher.

buy one's teacher a present
-Tomorrow is Teachers' Day.
-I suggest you buy your teacher some presents. What do you think?
present flowers to one's teacher
-Did you attend the graduation ceremony yesterday?
-Sure. It was moving that students presented flowers to their teachers.
fall short of the expectations of one's teacher
-I think the principal's speech encouraged me deeply and doubled my confidence. The bitterness and tiredness of the past are now transformed into aspiration for the future.
-I have the same feeling. I thought that I would do my best to study well in the future thus not to fall short of the expectations of my teachers and my parents.
*live up to / come up to / meet one's expectations 不辜负某人的期望
stand well with one's teacher
-John stands well with his teachers.
-Yes. He's a student with excellent morals and academic skills, so he's popular with all his classmates and teachers.
get a rap on the knuckles from the teacher
-He got a rap on the knuckles from the teacher for not finishing his homework.
-He deserved it. He spent the whole night on the Internet.
*(give somebody/get) a rap on/over/across the knuckles - (to give somebody/receive) strong criticism for something (给某人以/受到)严厉谴责,厉声训斥
respect one's teacher
-We should respect our teachers. You shouldn't have answered your teacher back in class.
-It was an impulse. I couldn't stand her.
acknowledge one's debt to one's teacher
-Congratulations! You finished top in the final examination.
-Thank you very much. I don't know what to say. I want to acknowledge my debt to my teacher first.