问题
选择题
—Must I hand in my exercise book now?
—No, you _ . [ ]
A. needn't
B. can't
C. mustn't
答案
答案：A
搜题请搜索小程序“爱下问搜题”
—Must I hand in my exercise book now?
—No, you _ . [ ]
A. needn't
B. can't
C. mustn't
答案：A