—When do you think ? —I've no idea. [ ]
问题:
—When do you think ?
—I've no idea. [ ]
A. the train will arrive
B. will the train arrive
C. does the train arrive
D. the train does arrive
—When do you think ?
—I've no idea. [ ]
A. the train will arrive
B. will the train arrive
C. does the train arrive
D. the train does arrive