—Hello may I speak to Mr Green please? —Sorry. Hea meeting. Can you call him later?A. ha

问题补充：

—Hello, may I speak to Mr Green, please?

—Sorry. Hea meeting. Can you call him later?

A. has

B. is having

C. will have

D. had

答案：

A. has

(答案→)B. is having

C. will have

D. had

解析：当上文给你场景，说找谁时，后文回答往往用现在进行时，故选B