问题
选择题
— May I go swimming now?
— No, you ______. You must finish your homework first. [ ]
A. mustn't
B. may not
C. couldn't
D. needn't
答案
答案：A
搜题请搜索小程序“爱下问搜题”
— May I go swimming now?
— No, you ______. You must finish your homework first. [ ]
A. mustn't
B. may not
C. couldn't
D. needn't
答案：A