And they often study_____long hours.
And they often study_____long hours.
這句話中的空填什么?A.with B.of C.at D.for
這句話中的空填什么?A.with B.of C.at D.for
英語人氣：460 ℃時間：2020-05-11 11:33:57
優(yōu)質(zhì)解答
D.for代表持續(xù)一段時間,代表時間段,其他不行.long hours時間段,所以選D
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