阅读短文，选择正确的答案。
   When you are in England，you must be very careful on the street because the traffic keeps to the left （交通是左通行的）.Before you cross a street，you must look to the right and then the left.In the morning and in the evening when people go to or come back from work，the streets are very busy.When you go by bus in England，you have to be careful，too.Always remember the traffic （通） moves （移动） on the left.
（1）When you are in England，you must be very careful

B

B

.
A．at home
B．on the street
C．at school
（2）In England，traffic keeps to the

B

B

.
A．right
B．left
C．middle
（3）When you cross a street in England，look to the

B

B

first.
A．front
B．right
C．left
（4）The streets are busy in the

C

C

.
A．morning
B．evening
C．A and B
（5）The traffic moves on the

B

B

.
A．first
B．left
C．right