第一节：单项填空（共15小题，每小题1分，满分15分）
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该选项的标号涂黑。
例：It is generally considered unwise to give a child he or she wants.
A. however B. whatever C. whichever D. whenever
答案是B。
21. —Have you paid the rent of the house?
—The rent of the house? .
A. That isn’t due yet. B. Are you sure?
C. The house needs repair. D. Please remember the amount.
22. Don’t mind too much about mistakes. They are natural part of learning.
A. 不填； 不填 B. the; a C. 不填; a D. the; the
