根据上文可知，公交车有两层，故此处指坐在第二层，填second

【题目】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 the traffic moves on the left. So you must be careful. 【6】_______ （have） a look first, or 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.