问题
选择题
—_____ you come to my birthday party tomorrow, Robert?
—I'm afraid not. I have to study for my exam.[ ]
A. Must
B. Should
C. Can
D. Need
答案
C
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—_____ you come to my birthday party tomorrow, Robert?
—I'm afraid not. I have to study for my exam.[ ]
A. Must
B. Should
C. Can
D. Need
C