问题补充：
— he have to wear his school uniform every day?
—No, he .
A. Must; mustn
B. Can; can
C. Does; doesn have to
D. Do; don have
答案：
A. Must; mustn
B. Can; can
(答案→)C. Does; doesn have to
D. Do; don have
解析：must的否定回答不能用mustn’t，应该用needn’t ，故排除A；B选项中can和have to不能放一起，故排除B；根据he可知，应该用does提问。所以本题选C 。
