—Could you tell me _______? —Certainly.
问题:
—Could you tell me _______?
—Certainly. In half an hour. [ ]
A. when will the train arrive
B. when the train will arrive
C. when would the train arrive
D. when the train would arrive
—Could you tell me _______?
—Certainly. In half an hour. [ ]
A. when will the train arrive
B. when the train will arrive
C. when would the train arrive
D. when the train would arrive