一、根据句意补全所缺单词（首字母已给出）
1.You can play games with your friends in the video a______.
2.When you are o_________a vieit to England,you must be very clean in the streets.
3.Before you walk along a street,you must look to the right f______ and then the left.
4.In the moring and in the evening when people go to or come from w_____,the streets are very busy.
5.Have a look first,o_____you will go in the wrong direction.