问题
Could you tell me_____ ? —- Certanily. In half an hour.
A:when will the high speed train arrive
B:when the high speed train will arrive
C:when would the high speed train arrive
D:when the high speed train would arrive
B:when the high speed train will arrive
C:when would the high speed train arrive
D:when the high speed train would arrive
正确答案是: