摘要: -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
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—Can you come to have dinner with me this evening?
—I'm afraid not. I _______ take care of my grandmother. She is ill.
—I'm afraid not. I _______ take care of my grandmother. She is ill.
[ ]
A. can't
B. have to
C. may
D. could
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B. have to
C. may
D. could