–Whose is this purple scarf?
–It _______ be Mary’s. She always wears a purple scarf like this.
| A．must | B．can | C．mustn’t | D．can't |
Food safety is important. Rules to stop people from food pollution.
A、must make B、must be made C、can’t be made
--Listen! Is Tom singing in the room?
-- No, it ______ be Tom. He has gone to Paris.
A. mustn’t B. needn’t C. can’t
–––Who is singing in the next room？ –––It_______ be Lucy. She has gone to Hong Kong.
| A．needn’t | B．must | C．may not | D．can’t |
The number of people invited ______ fifty, but a number of them ______ absent(缺席) for different reasons.
| A．were; was | B．was; was | C．was; were | D．were; were |
If you can’t ___________ English, you can ____________ it in Chinese.
| A．speak; speak | B．talk; say |
| C．speak; say | D．say; tell |
Teenagers _______ allowed to drive in the street .
| A．should not be | B．should be not |
| C．not should be | D．shouldn’t |
As a teacher ， you patient .
| A．can’t be to | B．can’t to be |
| C．can’t be too | D．can’t too be |
A country has dreams. We teenagers __________ also have dreams. With dreams and hard work, anything amazing can be created.
| A．may | B．must | C．should | D．can |
－Mike, I can't stop playing computer games.
－For your eyes, I am afraid you ______.
| A．have to | B．may | C．would | D．could |
We use mobile phones when the plane takes off．
| A．may not | B．should n’t |
| C．need n’t | D．must n’t |
The children ______ not to play with the fire .
| A． are told | B． tell | C． are asking | D．warn |
-Must I use both hands?
-Yes, you _____.
| A．must | B．need | C．should | D．can |
The little boy was made _____ again after his mother told him some jokes.
| A．laughed | B．laugh | C．to laugh | D．laughing |
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