【題目】Mum, do you know where my dad is?

I don't know. Perhaps he ________ in the pool.

A.swimsB.swimC.is swimmingD.is swiming

【答案】C

【解析】

句意:——媽媽,你知道我爸爸在哪嗎?——我不知道,或許他在游冰池里游泳吧。

考查動(dòng)詞時(shí)態(tài)。swims游泳,第三人稱單數(shù); swim游泳,原形; is swimming正在游泳; is swiming形式錯(cuò)誤,swim的現(xiàn)在分詞要雙寫m。根據(jù)語(yǔ)境現(xiàn)在進(jìn)行時(shí),其結(jié)構(gòu)是“be doing”形式,swim的現(xiàn)在分詞形式要雙寫m。主要是單數(shù),be動(dòng)詞用is。根據(jù)題意,故選C

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