1£®He earns his living by doing all kinds of things.

2£®Learn to combine your knowledge with experience£¬and you are sure to succeed.

3£®People cut down too many trees and leave rubbish everywhere.

4£®In my opinion, we should limit our expense to what we can afford.

5£®He consulted a number of books about the subject in the library before he gave his speech.

6£®It is not polite to spy on what girls are wearing.

7£®David, I'm tired of watching television; let's go for a walk.

8£®The mother was trembling with anger.She glared at her son and said nothing.

9£®There is no doubt that the plants benefited from the rain.

10£®They didn't go to the park yesterday. Neither/Nor did we.