第二部分：英语知识运用 （共45分）
第一节：单项填空（15分）
21. — Did you find your MP4 yesterday?
— No, I didn’t find _______, but I’ve bought _______.
A. it; it B. it; one C. one; one D. one; it
22. As is known to all, _____ great scientific achievements may have _____ positive effect on our life as well as society.
A. /; a B. the ; a C. the; / D./; /
23. He _____ a plan for the committee to consider.
A. put away B. put off C. put forward D. gave up
