---Mr. Black always makes his class _______and keeps his students interested in class.

---What a successful teacher he is!

A. boring B. lovely C. slowly D. lively

—What an exciting match!

—Yes, isn’t it? I ________ such a great one before!

A. never saw B. had never seen C. never see D. have never seen

The boy thinks he shouldn’t _______what to do because he is 18 now.

A. tell B. tells C. telling D. be told

一Why were you late for schoo1 this morning?

—Because my alarm clock didn’t go off and I ．

A. changed B. completed C. overslept D. missed

The students ________ don’t study hard will not pass the exam.

A. which B. who C. whom D. whose

—With the help of your friends，you’ll deal with the problem better，John．

— Why didn’t I mink of such a good idea?

A. Why not? B. You have a point． C. Well done． D. That’s all right．

Nobody can predict what in the future．So enjoy your life．

A. will happen B. Happen C. have happen D. happen

He often takes time______summer holiday with his grandparents.

A. to spend B. spend C. spent D. spending

The rivers will become dirtier and dirtier ______ we take action to protect them.

A. since B. if

C. until D. unless

-- I can't find David. Where is he?

-- He ________ for tomorrow's competition at home.

A. prepares B. is preparing C. has prepared D. prepared