﹣ Lily， _____ you finish the letter in ten minutes？
﹣ Yes， I can．（ ）
A．mustB．shouldC．needD．can
I can't go with you．I _______stay at home until my parents come back．（ ）
A．canB．mayC．mustD．could
Mum，_____ I go out to watch a movie？
Yes，you can．But you must finish your homework first．（ ）
A．mustB．needC．willD．may
Could I smoke here？
Sorry．I am afraid you_____．Look at the sign "No smoking"!（ ）
A．couldn'tB．needn'tC．can'tD．won't
﹣﹣﹣ I hand in the report today？
﹣﹣﹣No，you needn't．（ ）
A．CanB．MustC．ShallD．Could
We can see some wild animals in the forest，right？
It's hard to say．There be only a few left．（ ）
A．mayB．mostC．needD．should
﹣﹣﹣Lily is intelligent and hard﹣working， she do well in the singing competition．
﹣﹣﹣Sure．She was born to be a singer．（ ）
A．shouldB．mightC．can't
Mom，_____I play computer games this evening？
Sure， but you_____finish your homework first．（ ）
A．can； mustB．can； mustn't
C．may； couldD．may； can't
Lucy is walking the dog in the park．
She be． Listen! She is singing loudly in her room．（ ）
A．can'tB．mustn'tC．needn'tD．won't
A little bird entered through the open window to join us for dinner last night．
Wow， the unexpected guest ________ welcomed．（ ）
A．will beB．must beC．won't beD．mustn't be
Every one of us ______ always breathe the same breath and share the same future as the people．（ ）
A．mightB．shouldC．could
Mom， I watch TV tonight？
Sure，but you finish your homework first．（ ）
A．can； mustn'tB．may； could
C．may； can'tD．can； must
﹣May I watch TV， Dad？
﹣When your homework is finished， you ____．（ ）
A．shouldB．canC．mustD．need
﹣Yuan Longping， a famous Chinese scientist， is now doing research on sea rice．
﹣If farmers____ start planting rice in salty water， China's food supply will surely rise．（ ）
A．canB．can'tC．mustD．mustn't
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