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When you are in England, you must be very careful in the streets _____ the traffic drives _____ the left. _____ you cross a street, you must look to the _____ first and then left. In the morning and in the evening when people go to or come from work, the streets are very _____.  Traffic is most dangerous then. When you go by bus in England, you have to be _____, too. Always remember the traffic moves on the left. So you must be careful. Have a look first, _____ you will go the wrong way. In many English cities, there are big buses _____ two floors. You can sit on the second floor. _____ there you can see the city very _____. It’s very interesting.