Every (可能)________ has been tried to save the child’s life.

In this school English__________(teach)through TV.

This is of an a _______ for children of a play by Shakespeare.

What would you have to do if you ______ to meet him?

A. are　　　　　　　 　B. have

C. will be going　　　　 D. were

The missing boys were last seen near the river.

A. playing B. to be playing　　　 C. play D. to play

Not until I had read your letter _______ the true state of affairs.

　 A. I understood　 B. I could understand　 C. did I understand　 C. had I understood

The government is making efforts to r________the traffic noises in order to let citizens have a quiet sleep.

If we can ________ this speed，we should arrive there in about two days.

A. keep up 　　　　　　 B. keep on

C. keep to 　　　　　　 D. put up

The seawater takes _____ a lot of heat in summer.

A. up　　

B. in　　

C. over　　　

D. off