Definition: to make an arrangement or meeting certain, often by telephone or in writing Level: B1
六人已确认他们将参加，十人尚未回复。
Six people have ___confirmed that they will be attending and ten haven't replied yet.
航班应在起飞前48小时确认。
Flights should be ___confirmed 48 hours before departure.
我已通过电话接受了这份工作，但尚未书面确认。
I've accepted the job over the phone, but I haven't ___confirmed in writing yet.
