This is a street crossing.There are red and green lights at each corner.Drivers must watch the lights carefully.
When there is a green light,the cars may go.When there is a red light,the cars must stop.They must wait until the red light changes to green.Then they can go on.Sometimes the cars want to make a right turn or a left turn.They can make a right turn when the light is green or red.But they must wait until the green light is shining if they want to turn left.
Some people are color-blind(色盲).They can not tell the difference between the red and green lights.These people must not drive,or there will be accidents.We must keep our streets safe.
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(1)
Drivers must watch ____ carefully at each corner.
A . green lights
B . red lights
C . both green lights and red lights
D . orange lights
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(2)
When there is a red light ____ .
A . the cars must stop
B . the cars may go on
C . the cars may make a left turn
D . the cars may take a right or left turn
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(3)
Cars can make a right turn when ____ .
A . there is a red light
B . there is a green light
C . there is a red or green light
D . there is no light
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(4)
Color-blind people may have accidents because ____ .
A . they can't see cars
B . they can't see the lights
C . they can't tell the difference between the red and green lights
D . they can't hear cars
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(5)
According to (根据) the passage ____ must not drive.
A . young people
B . women
C . color-blind people
D . old men
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