问题
选择题
I'm sorry I ____ go now. My father told me on the phone that my mother was ill. [ ]
A. can
B. may
C. have to
D. think
答案
答案：C
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I'm sorry I ____ go now. My father told me on the phone that my mother was ill. [ ]
A. can
B. may
C. have to
D. think
答案：C