Question

This is a street crossing. There are red and green lights at each corner. ______1________________When there is a green light, the cars may go.

______2_________________They must wait until the red light changes to green. Then they can go on. _______3___________They can make a right turn when the light is green or red._________ 4_________

Some people are color-blind(色盲). They can not tell the difference between the red and green lights.__________ 5___________________We must keep our streets safe. And we must obey the traffic rules. All of us should be very careful when we are near the traffic.

	A. These people must not drive, or there will be accidents. B. Drivers must watch the lights carefully. C. When there is a red light, the cars must stop. D. Sometimes the cars want to make a right turn or a left turn. E. But they must wait until the green light is shining if they want to turn left.

 

  1._________  2.__________   3._________ 4.__________  5._________

Answer 1

1B  2C  3D  4E  5A