You can take as many as you like, because they are free of________.
25. Most of us think ______ important to know how to get well along with others.
24. More and more foreigners are working in China, ______?
23. The day before yesterday, I ______ one of my old friends in the street.
22. The girl often helps her best friend, ______ is not good at English. To their delight, his English is improving day by day.
第二部分知识运用 (共两节,满分20分)第一节单项填空(共10小题;每小题1分,满分10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,并在答题卡上将该项涂黑。21. When Li Lei was a small child, he hoped to be ______ policeman after he grew up and finally his dream came true.A. a B. an C. the D. 不填