6. The film is ______(suit) for all ages.

5. There are lots of people 　　　　　　(等待) at the bus stop.

B) 根据句子意思，用括号中所给单词的适当形式填空。

4. The planes fly low 　　　　　　　　　(吵闹地) through the sky.

3. Teachers always 　　　　　　　(鼓励) their students to practice speaking English in class and after class.

1. You’d better open the window to let in some 　　　　　　(新鲜的)air.

10. It is 　　　　　　(danger) to cross the street when the traffic lights are red.

练习四

A) 根据括号中所给的汉语写出单词，使句子意思完整正确。

9. I 　　　　　　(not finish) my homework yet, Mr Yang. Can I hand it in tomorrow?

8. If we 　　　　　　(not protect) giant pandas, they will die.

7. The film Hero 　　　　　　(direct) by Zhang Yimou is not so good, I think.

6. Don’t spend too much time 　　　　　　(chat) on the Internet.