民警提醒旅客"Please go through the Channel S."应翻译为：（）

A.Are you travelling alone or with somebody else？
B.Do you have checked in bags？
C.Is there anybody traveling together with you？
D.Is there anybody to meet you at the airport？

A.Is this your second time to China？
B.Is this your first time to China？
C.Have you ever been to China before？
D.Have you ever visited China before？

A.What’s your birth place？
B.What’s your date of birth？
C.Where were you born？
D.When were you born？