A、  B、  C、  A题目为询问是否应该由说话者自己来预约欧洲之旅的助动词(Should)疑问句。Should I…可用来表达“我需要／应该……吗?”。

It’s almost time to leave for the station.
(A)Oh, I believe the office is ready.
(B)Then we should put our bags in the car.
(C)Only time will tell.

Should I take care of the bookings for the European tour?
(A)Do you have time to do that?
(B)No, Sheryl took them.
(C)We flew business class.