完形填空。
When you are in the UK, you must be very careful in the streets________the traffic drives _______the left. _______you cross a street, you must look _______first and then left. In the morning and in the evening when people go to or go home from work, the streets are very________. Traffic is the most dangerous then.
When you go by bus in the UK, you have to be________too. Always remember the traffic moves on the left. So you must be careful. Have a look first, or you will ________the wrong way. In London, there are big buses________two floors. You can sit on the second floor._______there you can see the city very _______. It’s very interesting.
| 1． | | A．so | B．but | C．however | D．because |
|
| 3． | | A．After | B．When | C．Before | D．But |
|
| 4． | | A．left | B．right | C．back | D．front |
|
| 5． | | A．busy | B．long | C．many | D．dirty |
|
| 6． | | A．safe | B．busy | C．dangerous | D．careful |
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