A: Listen! Is it Tina singing in the next room?B: No, it __________ be her. She is still in Shanghai.

We are living in an age ____________ we treasure very much, because it sees man’s rapid development.

Will the twins go to Tom’s birthday party next Sunday? –Not until they ________.

But where______ you______ it?

John wanted to go to Spain, but at last decided _________ Canada.[ ]