The weather turned out to be very good was more than we could expect.A. whatB. whichC. th

问题补充：

The weather turned out to be very good， was more than we could expect.

A. what

B. which

C. that

D. it

答案：

A. what

B. which

C. that

D. it

解析：which可代替句子，用于非限定性定语从句，而what不可。That不能用于非限定性定语从句，it不为连词，使由逗号连接的两个句子并在一起在英语语法上行不通。