—I think a bridge            over the river.

—Well,more trees           every year to stop the wind.

    Internet is educational . Many people think children should to surf the Internet as they wish . In this way ,they can look different subjects on different kinds of websites according to their own interest . But in my opinion ,children should always be watchedsurfing the internet .

    Many websites have information and pictures that children should not see .There are many things that children don't understand .All of these may have some bad influence on children's  Also , it is dangerous to let childern use chat rooms by themselves .Many parents tell their children not to talk to on the street , so they should be careful of their children talk to on the internet,too . What's  sitting in the front of a computer for a long time isn't good for children's eyes , so should monitor(监视) the time that children spend on the internet .

    In a word ,children should  away from anything that could be bad for them . I believe that it is necessary for parents to watch their children when they use internet .

    Time spent in a bookshop can be enjoyable . If you go to a good s no assistant will come near to you and say , “Can I hyou ?” You needn't buy ayou don't want . You may try to find out where the book you want is . But if you w, the assistant will lead you there and then he will go away . It seems that he is not interested iselling any books at all .

    There is a story which tus about a good shop . A medical student found a very useful book in a shop , but it is too expensive for him to b He couldn't get it from the library , e So every afternoon he went there to r a little at a time . One day , however , he couldn't find the book from its usual place and was leaving when he saw an assistant signing to him . To his s the assistant pointed to the book in a corner , “I put it there so as not to be sold out .”said the assistant . Then he let the student go on with his reading .

    Many students get a driver's permit at 15. In California, they are then allowed to drive for 50 hours under supervision. “Under supervision” means that a friend or relative who already has a license has to ride with them. But what happens when teenagers (persons between 13 and 19 years old) start driving on their own? Many are careful drivers and never have a problem. But many others are not, and they create(造成) problems on the road. Fifteen-year-olds are too young to drive, and sixteen-year-olds are too immature(不成熟的) to start driving alone. In the United States, more teenagers are drilled in driving accidents than in any other way. While fewer than 7% of all drivers are teenagers, teenagers are involved(占；包括) in 14% of the terrible car accidents in the country. Sixteen-year-olds are involved in over 43 crashes in every million kilometers they drive. But seventeen-year-olds cause only about 30 accidents in a million kilometers of driving. One year makes a difference. So the age limit(限制) should be increased.

—I agree. Old people should be given more care instead of money.

—           ,it's not safe enough.