问题补充:
If you listen to me, you have some candies, Tommy.
A. are able to
B. shall
C. must
D. need
答案:
A. are able to
B. shall
(答案→)C. must
D. need
解析:情态动词十have done,可表示猜测,这种句子结构的反意疑问句应该与情态动词无关,而与后面的完成结构一致,如果有过去的时间状语,则用一般过去时反意疑问。如:You must have lived there last year, didn’t you?