Our rooms __________ by my mother three times a week.
| A．cleans | B．are cleaning |
| C．is cleaned | D．are cleaned |
The mixture smelt terrible, but the little boy _______ taste it.
| A．made to | B．was made | C．was made to | D．make |
Computers are very useful in our lives, but they must properly.
A. use B. be using C. be used
—Is John coming by train?
—He should, but he not. He likes driving his car, but I’m not quite sure.
| A．must | B．can | C．may | D．need |
— Look! The tree is growing well. When ?
— Sorry, I don’t know, either.
| A．was it planted | B．has it been planted |
| C．is it planted | D．will it be planted |
----- Have you heard of Earth Day ?
----Yes . The first Earth Day ______ in 1970 to educate us to protect our planet .
| A．celebrates | B．celebrated | C．is celebrated | D．was celebrated |
—You see, China is becoming stronger and stronger now.
—Yes. That’s why Chinese _____ in more and more schools out of our country.
| A．are taught | B．has taught |
| C．is taught | D．have taught |
We _______ pay to get into the concert. It's free.
| A．can't | B．mustn't | C．might not | D．don't have to |
— Jack, can you play the guitar?
— Yes, I _______．
| A．must | B．can | C．need | D．may |
－Shall we go there by taxi? －No, we ______. It’s not far from here.
| A．needn’t | B．can’t | C．couldn’t | D．mustn’t |
—Must I wash these plates?
—No, you . The machine can do it.
| A．mustn't | B．can't | C．may not | D．needn't |
---There’s too much salt in the Chinese diet.
---So there is. The WTO says only 1.5 grams of salt_______ for each man every day.
| A．is needed | B．Needs |
| C．will need | D．has needed |
This book _______ be Li Lei’s. Look! Her name is on the cover.
| A．must | B．may | C．can | D．need |
Father was very angry because his favorite glass ________ by his pet dog.
| A．broke | B．has broken |
| C．was broken | D．has been broken |
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