Question

Simon couldn't come to the party, ________ was a pity．

[　　]

A．which

B．that

C．it

D．what

Answer 1

答案：A
解析：

因为此句为非限制性定语从句，而此句所修饰的不是前面某一个词，而是代表整个主句内容，通常用逗号与主句分开，所以正确答案是A。