4. At the computer lab,the teacher can shut down all the other computers by using the (center) computer.

3. Li Na is thought (high) of by the public for her achievement in tennis.

2. As a primary school student,I often drew a ( divide) line on the desk.

1. We had to hold our ( breathe) for a short while before the result was announced.

10. I tried to clean up the (污点) on the floors upstairs and downstairs but failed.

9. He stopped the fire from spreading and the policemen (表扬) him for it.

8. The Spoken English Competition is held to (鼓励) more people to speak English.

7. Both my parents and my cousin are going to attend a concert (今晚) .

6. Some children were throwing (石头) into the river when I walked past.

5. (美国人) prefer to invite friends to their homes while British people seldom do that.