问题
选择题
The desk is not dirty. You _____ clean it. [ ]
A. mustn't
B. shouldn't
C. needn't
D. can't
答案
答案：C
搜题请搜索小程序“爱下问搜题”
The desk is not dirty. You _____ clean it. [ ]
A. mustn't
B. shouldn't
C. needn't
D. can't
答案：C