You____all those calculations! We have a computer to do that sort of thing.A、nee

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问题 You____all those calculations! We have a computer to do that sort of thing.

选项 A、needn’t have done
B、must not have done
C、shouldn’t have done
D、can not have done

答案 A

解析

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You____allthosecalculations!Wehaveacomputertodothatsortofthing.A、nee