I havn't booked the air ticket yet.I don't know if there are any flights today.

分类: 作业答案 • 2022-01-09 18:04:57

问题描述：

I havn't booked the air ticket yet.I don't know if there are any flights today.
I shall c______ it first.

答

Confirm 证实
事先证实有无航班