--Mum, can I wear my jeans to school?
--No, you wear school uniforms. That’s the school rule.
A. can
B. may
C. can’t
D. have to
网友回答
A. can
B. may
C. can’t
(答案→)D. have to
解析:A. can能够 B. may可能 C. can’t不可能D. have to不得不,必须;句意:妈妈,我能穿我的牛仔裤去学校吗?不行,你必须穿校服。那是学校的规定。故选D