—Are you free tomorrow? I was wondering if we could have lunch together. — No I'm afraid

问题补充：

—Are you free tomorrow? I was wondering if we could have lunch together.

— No, Im afraid not. I John then.

A. am meeting

B. met

C. have met

D. was meeting

答案：

(答案→)A. am meeting

B. met

C. have met

D. was meeting

解析： 句意：--明天你有空吗？我想知道我们能否一起吃午饭。--不，恐怕不能。我那时将和约翰见面。Then指的是tomorrow，所以用现在进行时表示一般过去式，选A。