The number of students in this school has ______ since 2008.
The number of students in this school has ______ since 2008.
A.had doubled B.has doubled C.doubled D.double
A.had doubled B.has doubled C.doubled D.double
英語人氣：508 ℃時(shí)間：2019-09-18 05:25:42
優(yōu)質(zhì)解答
B時(shí)態(tài)應(yīng)為現(xiàn)在完成時(shí)the number of students不是復(fù)數(shù)嗎？？這是代表學(xué)生的數(shù)目，是集體，應(yīng)該是單數(shù)
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