The atmosphere of the earth ______ us from the strong sun light.
A. prevents B. keeps C. stops D. protects
---How well did John do in the match?
--Wonderful. I think we can’t have a ______ player in our football team.
A. good B. well C. better D. best
Many countries are increasing their use of natural gas , wind and other forms of ______.
A. power B. force C. energy D. strength
The fact that many college graduates get lower pay than some workers has ______ a heated discussion.
A. set out B. set about C. set up D. set off
I have no idea ______ it is that makes him puzzled.
A. how B. what C. why D. which
He sat at the desk, __________ a novel.
A. read B. to read C. reading D. reads
