When you are in England, you must be very 1.______ (Care) in the streets because the traffic 2.______ (drive) on the left. Before you 3.______ (across)a street, you must look to the right first and then the left.
　　If the traffic lights are red, the traffic must 4.______ (stop). Then you can cross road 5.______ (careful)! If the traffic lights are green, the traffic can go. You mustn’t cross.
　　When you go 6.______ bus in England, you have to be careful, too. Always remember the traffic moves on the left. 7.______ (have) a look first 8.______ you will go the wrong way. In many English 9.______ (city), there are big buses with two floors. You can sit in the 10.______ (two) floor. From there you see the city very well. It's very interesting.