I sooner but I didn’ t know that they were waiting for me.A. had comeB. was comingC. woul

问题补充：

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：

A. had come

B. was coming

C. would come

(答案→)D. would have come

解析：考查虚拟语气。句意为“我本来可以早点来，但我真不知道他们在等我。”but I didn’ t know表示了过去时间，因此前句是对过去情况的虚拟，用主语+should / would / could / might + have done表达，故选D。