问题
选择题
You ________ cross the road when the traffic lights are red. [ ]
A. mustn't
B. can't
C. may not
D. don't
答案
答案：A
搜题请搜索小程序“爱下问搜题”
You ________ cross the road when the traffic lights are red. [ ]
A. mustn't
B. can't
C. may not
D. don't
答案：A