问题
选择题
— Is Jack on duty today?
— It ____ be him; it's his turn tomorrow. [ ]
A. mustn't
B. won't
C. can't
D. needn't
答案
答案：C
搜题请搜索小程序“爱下问搜题”
— Is Jack on duty today?
— It ____ be him; it's his turn tomorrow. [ ]
A. mustn't
B. won't
C. can't
D. needn't
答案：C
