问题
选择题
—Who is making much noise?
—It ____ be Timmy. He is sleeping now. [ ]
A. can't
B. may not
C. mustn't
D. couldn't
答案
答案：A
搜题请搜索小程序“爱下问搜题”
—Who is making much noise?
—It ____ be Timmy. He is sleeping now. [ ]
A. can't
B. may not
C. mustn't
D. couldn't
答案：A