书面表达假期里，一些学生志愿者想担当交通小卫士，他们为司机朋友们制作了温馨提示卡，将一些安全驾驶时所注意的事项...

Dear drivers,               Enjoy driving

To keep   1    , please follow the rules!

You may go on if the light is green. When there is a red light, you must   2    .

Wait   3     the light changes to green if you want to turn left.

Whether the light is green or red, you can turn right if there are no cars in front of you.

Color-blind people cannot see the difference   4  red and green, so please don’t drive.

Please remember not to drive    5    around a school.