问题
选择题
—Can you come to have dinner with me this evening?
—I'm afraid not. I _______ take care of my grandmother. She is ill. [ ]
A. can't
B. have to
C. may
D. could
答案
答案：B
搜题请搜索小程序“爱下问搜题”
—Can you come to have dinner with me this evening?
—I'm afraid not. I _______ take care of my grandmother. She is ill. [ ]
A. can't
B. have to
C. may
D. could
答案：B