问题
选择题
There is no night on. They _____ be at home. [ ]
A. can't
B. mustn't
C. needn't
D. shouldn't
答案
答案：A
搜题请搜索小程序“爱下问搜题”
There is no night on. They _____ be at home. [ ]
A. can't
B. mustn't
C. needn't
D. shouldn't
答案：A