— What’s the trouble with Tim?—          .

— Hey, you haven’t been acting like yourself. Everything OK? —______ .

.--- How many tomatoes do we need?---_________. 

— I think students should have mobile phones to call their parents at school..—_______. They often use them to play games instead.

—Honey,let’s go out four dinner.—      I don’t  have  to  cook.