—Attention, please. The plane has to be _____ because of the heavy rain. ---Oh, bad luck! We have to wait now.

A .since B .unless C .when D .until

A .No, I didn’t B .Yes, I did C .Yes, I didn’t D .No, I did.

A .What B .How C .What an D .How an

A.Everybody B.Anybody C.Nobody D.Somebody

A. save B. to save C. saved D. saving

A. what the story was about B. when the story happened

C. if the story was true D. who told him the story

A .raised B .was raised C .has raised D .has been raised

A .Every three days. B .Twice a week.

C .Once a week. D .Every other day.

A .to live in B .living C .to live D .living in

A .yourself B .yourselves C .himself D .themselves