We couldn’t have passed the final examination ______ your help.

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问题 We couldn’t have passed the final examination ______ your help.

选项 A、but for
B、without
C、if it had not been for
D、All of the above.

答案D

解析 A，B，C项都可以用于虚拟语气，故选D项。

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大学英语三级A级

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