> 英语 >
___a few minutes earlier,the pollicemen would have caught the murderer.
A.If they arrived
B Had they arrived
为什么不选A?选B
人气:185 ℃ 时间:2019-12-10 11:27:24
解答
这是if 引导的虚拟从句 是对过去的虚拟 从句省略if 用了倒装 完整的语句是if they hadarrived a few minutes earlier
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