一道英语题【四级】Onlyrecently__________todealwiththeenvironmentalproblems.A.somethinghasdoneB.hassomethingdoneC.hassomethingbeendoneD.somethinghasbeendone选哪个,为什么,

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问题描述:

一道英语题【四级】

Onlyrecently__________todealwiththeenvironmentalproblems.

A.somethinghasdoneB.hassomethingdone

C.hassomethingbeendoneD.somethinghasbeendone

选哪个,为什么,

彭小明回答:

  Conly放句首,句子用倒装.something应该是被做,所以选被动式

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