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  • Has he finished his homework yet?Yes,he _____ it an hour ago.

    Has he finished his homework yet?Yes,he _____ it an hour ago.
    A has done B did C had done D was doing 選哪個(gè)?為什么?
    英語人氣:940 ℃時(shí)間:2020-03-29 16:30:18
    優(yōu)質(zhì)解答
    B
    問某人是否做過某事/某事是否已發(fā)生【現(xiàn)在完成】
    問某事何時(shí)發(fā)生的用一般過去時(shí),夲句后面有an hour ago一般過去時(shí)的標(biāo)志.
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