﹣Listen! Linda is playing the erhu in the next room．
﹣It____________ not be Linda． She has gone to Shanghai to visit her uncle．（ ）
A．canB．mustC．needD．shall
Hurry up， Jeff! Let's cross the road as fast as possible．
No， you ____． Don't you see the light is still red？（ ）
A．couldn'tB．wouldn'tC．mustn'tD．needn't
This machine can （translate） simple messages into 24 different languages．
A good friend is someone you ______ share your pleasure and pain with． （ ）
A．canB．needC．shouldD．must
In some countries，people download （下载） music from the Internet without paying，because
it's against the law．（ ）
A．wouldn'tB．needn'tC．mustn'tD．couldn't
We should keep quiet in the cinema．We speak loudly．（ ）
A．canB．mustC．needn'tD．mustn't
﹣I wonder if these are Danny's glasses？
﹣They ______ be Danny's．He doesn't wear glasses．（ ）
A．can'tB．mustC．mustn'tD．can
I don't care what people think．
Well， you_______．Some opinions are worth weighing．（ ）
A．mightB．shouldC．couldD．would
Oh! Mum， where's my notebook？ I_______find it．（ ）
A．can'tB．needn'tC．shouldn'tD．mustn't
We've got everything ready for the picnic．
Do you mean I ______bring anything with me？（ ）
A．can'tB．mustn'tC．couldn'tD．needn't
Excuse me，sir，visiting hours are over．You ___________ leave．
Pardon me，nurse．I didn't hear the bell．（ ）
A．mayB．canC．mustD．need
The girl in the classroom ______ be Sarah．She has gone to the library．（ ）
A．mayB．mustC．can'tD．needn't
﹣Will Jim fly to Taiwan for a holiday？
﹣He _____try．In fact，it depends on how much the journey costs．（ ）
A．mayB．has toC．needD．must
﹣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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