---- Is it convenient for you if I come to see you at 4:00 this afternoon? ---- I’m afraid

问题补充：

---- Is it convenient for you if I come to see you at 4:00 this afternoon?

---- I’m afraid not. I a meeting then.

A. will have had

B. am about to have

C. will be having

D. was having

答案：

A. will have had

B. am about to have

(答案→)C. will be having

D. was having

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