问题
选择题
I ______ sooner but I didn’t know that they were waiting for me.
A．had come
B．was coming
C．would come
D．would have come
答案
答案：D
虚拟语气题。情态动词+have done 表示对过去的假设，我不知道他们在等我否则我会早些到的。根据didn’t know可知说的是过去，所以选D。
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