问题
选择题
Tony ______ go to the opera on Saturday because he is going to have a meeting. [ ]
A. can't
B. might
C. mustn't
D. should
答案
答案:A
Tony ______ go to the opera on Saturday because he is going to have a meeting. [ ]
A. can't
B. might
C. mustn't
D. should
答案:A