The announcement all flight were cancelled because of bad weather greatly distressed the w

问题补充：

The announcement all flight were cancelled because of bad weather greatly distressed the waiting passengers.

A. that

B. which

C. why

D. of which

答案：

(答案→)A. that

B. which

C. why

D. of which

解析：考查同位语从句。用that 解释前面的名词The announcement，句意：通知就是由于坏天气所有的航班被取消了，这个通知使正在等在的乘客和恼火。所以选A。