I don't think they must have finished file project by the end of last month ,______?
I don't think they must have finished file project by the end of last month ,______?
為什么是had they?
為什么是had they?
英語人氣：829 ℃時間：2019-08-20 02:55:27
優(yōu)質(zhì)解答
by the end of last month 與過去完成時連用,所以是had they?must表推測的反意疑問句的有關用法 1）對現(xiàn)在情況的推測,問句部分用主動詞（do,be)一般現(xiàn)在時的適當形式.若是現(xiàn)在進行時,問句部分用現(xiàn)在進行時的適當形式...
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