问题
选择题
A: Whose book is this?
B: It ______ be Joan's. There is her name on the cover. [ ]
A. might
B. may
C. must
D. shall
答案
答案：C
搜题请搜索小程序“爱下问搜题”
A: Whose book is this?
B: It ______ be Joan's. There is her name on the cover. [ ]
A. might
B. may
C. must
D. shall
答案：C