问题
选择题
—Can you come to my birthday party?
—I'm sorry, __________ I can't come. [ ]
A. and
B. but
C. or
D.then
答案
答案：B
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—Can you come to my birthday party?
—I'm sorry, __________ I can't come. [ ]
A. and
B. but
C. or
D.then
答案：B