问题

I had trouble finding out the answer _____ the question.
A:of
B:to
C:off
D:about;
B:to
C:off
D:about;
正确答案是:
同类题型
The expert suggests _________ more vegetables and fruits every day.
The important sports festival, the Olympic Games, heldevery years.
Do you spend much money on clothes every year, Susan? — Well, yes Quite a lot,______[ ]
We can use MSN to talk with each other on the Internet.—Really Will you please show me ________ it