If he ___ to the teacher attentively,he ___ the answer to the problem now
D.had listened,would know
這道題目是考查虛擬語氣中的交叉虛擬問題.
即,當(dāng)虛擬條件句中,主句和從句的時間是不一致的時候,應(yīng)分別考慮不同時間下的虛擬狀況.
按照本句的實際情況,listen發(fā)生的時間應(yīng)在過去,那么對于過去時間的虛擬采用過去完成時,had listened ;而know the answer 發(fā)生在現(xiàn)在,那么對現(xiàn)在時間的虛擬采用would +動詞原形,也就是would know
If he ___ to the teacher attentively,he ___ the answer to the problem now.
If he ___ to the teacher attentively,he ___ the answer to the problem now.
A.had listened,would have known B.listened,would know
C.listened,would have known D.had listened,would know
A.had listened,would have known B.listened,would know
C.listened,would have known D.had listened,would know
英語人氣：476 ℃時間：2020-03-30 06:24:21
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