__________ we leave the library before 5 o’clock?— No, you needn’t. You can stay here until 5:30.

Shall we buy a present _____ him?[ ]

Did you see the film last night? — Yes, I have never seen ____exciting film before.

It’s hard to ________ this kind of plant. You have to water it every day.

Do you often play computer games? —No, And so do ________ of my classmates, you know we are very busy