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  • He can't find his key.He ---------- them.A.must lost B.must have been lost C.must have lost

    He can't find his key.He ---------- them.A.must lost B.must have been lost C.must have lost
    英語人氣:916 ℃時(shí)間:2019-08-21 06:54:13
    優(yōu)質(zhì)解答
    He can't find his key.He ---C------- them.A.must lost B.must have been lost C.must have lostmust have done表推測已經(jīng)發(fā)生的事情,“一定已經(jīng)做過某事”A 錯(cuò)誤 應(yīng)該是must +動(dòng)詞原形B 錯(cuò)誤 must have been lost...
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