How time flies ! Several years _____ since we last met at Jack’s Party.

This is _____ book. And it is ____ English book.

These days all China is worried about the plane of MH370.—Yes. All the world wants to know________________.

The man is going to buy a big house when he _________ more money.

Could you tell me _______ it take to go from here to Harbin by car?—About fifty minutes.