问题
Could you tell me _____— Certainly, and the earlier, the cheaper.
A:how long it will take to get to New Delhi
B:if I can book a direct flight to New Delhi online
C:where I can buy the ticket for the direct flight to New Delhi
D:whether I can buy a ticket to New Delhi without my passport;
B:if I can book a direct flight to New Delhi online
C:where I can buy the ticket for the direct flight to New Delhi
D:whether I can buy a ticket to New Delhi without my passport;
正确答案是：
