— Hi! John would you like to play football with us? — Oh I can’t. I my lesson all the mo

问题补充：

— Hi! John, would you like to play football with us?

— Oh，I can’t. I my lesson all the morning and still need half an hour.

A. am reviewing

B. have been reviewing

C. have reviewed

D. reviewed

答案：

A. am reviewing

(答案→)B. have been reviewing

C. have reviewed

D. reviewed

解析：根据时间all the morning，一整个上午到现在一直在复习功课。所以用现在完成进行时，选B。