问题
选择题
— ______?
— If I have time. [ ]
A. Did you come
B. Are you coming
C. Have you come
D. Are you going to come
答案
答案：B
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— ______?
— If I have time. [ ]
A. Did you come
B. Are you coming
C. Have you come
D. Are you going to come
答案：B