The announcement —all flights were cancelled because of bad weather greatly distressed the waiting
问题描述：
The announcement —all flights were cancelled because of bad weather greatly distressed the waiting
接上面的题目:passengers.A that B which C why D of which
答
选A.这是that引导的同位语从句,是对announcement的内容作进一步的阐述,类似的还有：The news that Tony has passed in English greatly surprised me.托尼英语及格的消息使我大吃一惊.