Question

选择最佳答案，完成非限制性定语从句

Some of the roads were flooded, ________ made our journey more difficult．

[　　]

A．

which

B．

it

C．

what

D．

that

Answer 1

答案：A
解析：

非限制性定语从句，代指前面的整个一件事，只能用which来引导。