问题
选择题
You ________ stop when the traffic light turns red. [ ]
A. can
B. had better
C. need
D. must
答案
答案：D
搜题请搜索小程序“爱下问搜题”
You ________ stop when the traffic light turns red. [ ]
A. can
B. had better
C. need
D. must
答案：D