题目内容：

When you are in England you must be very careful in the streets __1._____ the traffic drives on the left. Before you cross a street you must look to the right first __2._____ then the left. In the morning and in the evening when people go to or come from _3.______, the streets are very busy. Traffic is most __4._______ (danger) then.

When you go by bus in England, you have to be careful, __5.______. Always remember that the traffic moves on the left. So you must be careful. __6._______ (have) a look first, or else you will go __7.___________ wrong way.

In many English cities, there are big buses __8.__________ two floors. You can sit on the __9.________ (two) floor, from __10._______ you can see the city very well. It’s very interesting.