—Brain did you have a good time during the holiday?— . I had to do homework most of the t

问题补充：

—Brain, did you have a good time during the holiday?

— . I had to do homework most of the time.

A. No doubt

B. Why not

C. Forget it

D. Not really

答案：

A. No doubt

B. Why not

C. Forget it

(答案→)D. Not really

解析：No doubt无疑地,很可能地;Why not为什么不呢;Forget it算了吧,休想;Not really不完全是,不见得.句意:布瑞恩,你在假期期间玩得高兴吗？根据下文，我大部分时间得做作业。可知前文为否定回应，故选D。