______, we could not have finished the work on time.

admin2015-07-20  6

问题 ______, we could not have finished the work on time.

选项 A、If they do not help us
B、Was it not for their help
C、Should they offer to help us
D、But for their help

答案D

解析 这里是含蓄虚拟语气用法。句意:要不是他们帮忙,我们不会按时完成工作的。
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