You’d better your flight reservation at the latest 3 days in advance.A. confirmB. conveyC

问题补充：

You’d better your flight reservation at the latest 3 days in advance.

A. confirm

B. convey

C. consider

D. convince

答案：

(答案→)A. confirm

B. convey

C. consider

D. convince

解析：confirm vt 确定，确认; convey vt 确定，确认；consider vt 考虑；convince vt 说服，使确信。句意为：你最好提前三天确定一下你的航班预定。