第二部分 英语知识运用(共两节，满分45分)
第一节 单项填空（共15小题；每小题1分，满分15分）
21. ［2012福州模拟］____successful launch of Tiangong-1 on September 29th marked ______ significant step in our country’s plan to build a space station．
A. The; a B．/; a C．A; the D．/; the
22. You have to study harder, ____you will fall behind others.
A. or B. but C. so D. and
23. When you feed horses, watch that one _____ — it bites.
A. particularly B. actually
C. usually D. naturally
24.［2012安庆模拟］Taobao is Asia’s largest retail（零售的） network platform, ______people can buy and sell many kinds of things．
A. where B. when C. that D. whose
25. The young kid said that he had told me the truth, about which I was ____very much. It’s typical of him to tell lies.
