What should I buy for Tom’s birthday?— How about ____camera? He loves taking photos.

Whose shirt is this? — It _______ be Li Lei’s. It is too big for him.

His passport shows that he________Canada. — Yes. He went there on business in spring and autumn last year.

I hear you __________ your project at the end of last week.-–In fact, I __________ it by the end of last month.

It seems that it is going to rain. You’d better the windows open when you leave the house. [ ]