—Couldyoumeetmeattheairport?—I'dliketo，butI'mafraidI...

問題詳情：

    — Could you meet me at the airport?

— I'd like to，but I'm afraid I ______ a very important meeting when you return.

A. am attending                         B. was attending

C. will be attending                        D. will have attended

【回答】

C

知識點：將來進行時及其被動式

題型：選擇題