问题
I tried to find ________ that prevented so many people from taking part in the program.
A:why it did
B:what it was
C:that it did
D:why it was
B:what it was
C:that it did
D:why it was
正确答案是：
同类题型
I ________ be a little bit slow, but at least I don’t make foolish mistakes.
When will Mr Black come to Beijing?—_________ September 5.[ ]
Your shoes are so old. Why don’t buy a new pair?— Because I _________ all my money on an MP5.
Mr Chen told us that three fourths of the earth ________covered with water.
Let’s go and play ______ ping-pong. I don’t want to play ______ violin.