— Come and join us, Jimmy!— I’m sorry, but I’m really busy now. If I time, I would certai

发布时间：2020-12-06 17:03:00

— Come and join us, Jimmy!
— I’m sorry, but I’m really busy now. If I      time, I would certainly go.
A. have
B. have had
C. had
D. will have

网友回答

A. have
B. have had
(答案→)C. had
D. will have
解析：if 引导的条件状语从句，从句用过去时，主句要用过去将来时。
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