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标题: [讨论]大全557 [打印本页]

作者: elites 时间: 2005-4-19 06:53 标题: [讨论]大全557

557. One of every two new businesses fail within two years.

(A) fail

(B) fails

(C) should fail

(D) may have failed

(E) has failed

Why the answer is not E?请NN给我一个不牵强的理由.TXS[讨论]大全557

557. One of every two new businesses fail within two years.

(A) fail

(B) fails

(C) should fail

(D) may have failed

(E) has failed

Why the answer is not E?请NN给我一个不牵强的理由.TXS

作者: sammen 时间: 2005-4-19 21:18

within=in那是将来时的标志啊。用完成的话，后面要是for tow years。

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