He carried the parcel home himself, but he ______ so, the shop could have sent it.

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问题 He carried the parcel home himself, but he ______ so, the shop could have sent it.

选项 A、did not need to do
B、needn’t have done
C、must not have done
D、couldn’t have done

答案B

解析注意didn’t need to do 和needn’t have．done的区别。前者指没有必要干某事，而且也并没有这样做，而后者指没有必要干某事却多余地干了。

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