帮我用另一个句子翻译，英语的

Our monitor is a school star.He knew a lot of students.
Our monitor is a well-known boy.He understood a large number of students.

Does she happy?
She feels happy,right?
Was you unhappy yesterday?
Did you sad yesterday?
They didn't go to bed until their mother come home.
They waited till their mother came back.Then they went to bed.

thanks

our monitor is well-known in our school,and he make aquintence of lots of students
does she live happily?
did you feel depressed yesterday?
they waited until their mother came back so as to sleep