You ________ it if you don’t have time.A.needn’t to do B.mustn’t do C.don’t have to do

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You ________ it if you don’t have time.A.needn’t to do B.mustn’t do C.don’t have to do

选C.A可以把to 去掉,B是禁止做的意思,与语境不符

选C

c

【C】You ________ it if you don’t have time.
A.needn’t to do B.mustn’t do C.don’t have to do 不需要