问题

It is exactly ______he often fails in the exam ______ makes his parents worried about him.
A:what; that
B:that; which
C:that; that
D:what; what
B:that; which
C:that; that
D:what; what
正确答案是:
同类题型
There are students in our school.
What was wrong with youyesterday evening—- I ____ my homework when thelight went off suddenly.
He ________ a good knowledge of Chinese history.You can ask him about the ancient China.[ ]
Do you want music in the music room
The reason why he didn’t come to school was ________ he was ill.