题目内容：

He___so quickly that he could win the race.A.ra
He___so quickly that he could win the race.
A.ran B.is running C.has run D.will run答案是哪个为神马?

优质解答

a

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解释呢

追答：

so that 如此以至于。这句话的意思是他跑的如此快以至于他赢得了比赛。could是can的过去式，所以run也用过去式ran

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Thx