第二部分 笔试部分（共90分）
四、单项填空 从A、B、C、D四个选项中，找出可以填入相应空格处的最佳答案。
（每小题1分，共15分）
21. —Shall we go on visit to Shanghai after the exam?
—No. I have to practice playing piano.
A. a; the B. /; the C. a; / D. the; a
22. July 1,2011 is our Party’s birthday. It was founded on July 1, 1921.
A. ninety B. ninetieth C. nineteenth D. ninth
23. — I ca n’t find my new dictionary.
— Is the one on Gary’s desk ?
A. ours B. yours C. his D. mine
