问题
选择题
--- Another cup of coffee?
---No. thanks. I _____ be off. Marry is waiting for me.
A．can
B．may
C．must
D．might
答案
答案：C
根据后文内容Marry is waiting for me.可知选择情态动词must，故选C符合题意。
搜题请搜索小程序“爱下问搜题”
--- Another cup of coffee?
---No. thanks. I _____ be off. Marry is waiting for me.
A．can
B．may
C．must
D．might
答案：C
根据后文内容Marry is waiting for me.可知选择情态动词must，故选C符合题意。