I ________ use a clock to wake me up because at six o'clock each morning the train comes by my house.(2012·新课标全国)
#11455
A
couldn't
B
mustn't
C
shouldn't
D
needn't
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If a student ____ in the exam, he won’t escape punishment.
#13256
A
gets caught to cheat  
B
gets caught cheating
C
gets to catch cheating 
D
gets catching cheated