完形填空（共6分，每小题1分）
阅读下面短文，掌握其大意，然后从短文后各题所给的A,B,C,D 四个选项中，选择最佳选项。
John comes from England. when he comes to ____, his friends tell him something about the traffic(交通) rules in China. People drive on the    __in England, but in China, people should drive on the right.____ you cross(穿过) a street, you must look both ways---look left, look right and look left again. Always remember the traffic goes on the right in China, or some cars and buses may hurt you. In the ____and the evening, when people go to work and return back（返回） from work, the streets are very busy. So it is the most dangerous(危险的)time. ____ you want to go across the road, you must wait for the ____ “walk” lights. In China, you can always ask the policeman for help when you lose your way.

A．Japan B．America C．Australia D．China

A．right B． left C．front D．back

A．Before B． After C．When D．And

A．morning B．afternoon C．evening D．night

A．What B．Where C．When D．Which

A．orange B． yellow C．green D．red