Teenagers get less and less sleep, them at a higher risk of physical and mental health problems.

下列交际用语最为得体的一项是（ ）

Shall I ________ some music—You’d better not. I’m ________ on my lessons.

In the past two months, he ______ himself to theway of life in the new school and how he wishes he _______ the teacher’sadvice.

The sports meeting will be ________ till next week because of the bad weather. —I’ve got it.