问题
选择题
— When ______ the train ______ (leave)?
— In half an hour. [ ]
A. did, leave
B. has, left
C. is, leaving
D. will, be leave
答案
答案：C
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— When ______ the train ______ (leave)?
— In half an hour. [ ]
A. did, leave
B. has, left
C. is, leaving
D. will, be leave
答案：C