There are 40 students in my class

----- Nội dung dịch tự động từ ảnh -----
1. There are 40 students in my class.
my
=> My class..............
2. Nam is taller than his sister.
=> Nam's sister...........
3. It is not good to stay up so late to listen to music.
=> You shouldn't..........
4.No one in our class is taller than Nam.
=Nam
5.It is wrong of us to throw rubbish into the river
=> We mustn't.........