Do you have enough students to clean the laboratory? –No, I think we need____________ students.

May I play computer games, Mum?—No, you ______. You’ve got a lot of homework to do.

The earth goes _______ the sun.[ ]

My cousin Andy can play piano very well, but he isn’t god at playing basketball.

It’s important_____ a foreign language. —-I agree with you. We should study hard.