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Hello, I'm John. I'm a student. My home is far from school. Usually I go to school by bus. Sometimes I go by bike, because it's good exercise. I have a sister. She is a student,too. We usually go to school together. My sister tells me that we must remember the traffic rules: Stop and wait at a red light; slow down and stop at a yellow light; go at a green light. Do you know the traffic rules?
1．John usually goes to school by bike.________
2．John's sister is a student.________
3．John usually goes to school with her sister.________
4．John's sister doesn't know the traffic rules.________
5．Slow down and stop at a green light.________