问题
选择题
-Must I clean the
floor now?
-_____. It is too dirty.[ ]
A. Yes, you needn't
B. No, you needn't
C. No, you mustn't
D. Yes, you must
答案
答案：D
搜题请搜索小程序“爱下问搜题”
-Must I clean the floor now?
-_____. It is too dirty.[ ]
A. Yes, you needn't
B. No, you needn't
C. No, you mustn't
D. Yes, you must
答案：D