单选题
15.
______if I had arrived yesterday without letting you know beforehand?
A、
Would you be surprised
B、
Were you surprised
C、
Had you been surprised
D、
Would you have been surprised
【正确答案】
D
【答案解析】
本题考查虚拟语气。因为if引导的从句是假设与过去事实相反的情况，所以主句要用虚拟语气，表示虚拟过去可能发生的情况，即用过去完成时。D项符合题意。
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