问题

18._________is often the case, he didn’t study hard and failed to pass the test

A:What
B:Which
C:It
D:As

正确答案是：

同类题型

It is most ________that the experts will come to the area to investigate the possible damage caused by the heavy flood.

What day is it today —______

life will continue on the earth for millions of years to come will depend onthe problem of pollution can be solved

I served drinks in a bar last summer. I find ______ a real battle being on my feet all the time like that.

下列句子，没有语病的一项是（）