阅读理解。

Jack loves to ride his bike. It's his favorite activity. But he made a big mistake last Wednesday. He acted foolishly (愚蠢地). He did not know the safety rules. He did not think about keeping his body safe.      Thinking before you act can help you avoid (避免) many accidents. Knowing what to do can keep you or someone close to you safe. Remember that when you ride a bicycle, you share the road with trucks and cars. Read the following rules. They can help you stay away from the risk, or chance, of getting hurt.

Title: ___________ 1. Always wear a helmet. 2. Don't ride on the sidewalk so you won't run into someone walking. 3. Ride on bike paths if they are near you. 4. Always ride in the same direction as the traffic. 5. Use hand signals (信号) when you stop or turn. 6. Obey traffic lights and signals. 7. Walk your bike across busy crossings. 8. If you ride with a friend, ride one behind the other. 9. If you ride at night, use your headlights, wear light-colored clothing,     and make sure you have reflectors (反射镜) on your bike.

1. We know from this passage that maybe Jack _____ last Wednesday.
A. failed an exam
B. had an accident
C. went to school by bus
2. The sidewalk is left for people who _____.
A. walk
B. drive cars
C. ride bikes
3. The word "risk" means _____.
A. safety
B. turning
C. danger
4. It's dangerous to _____ according to the rules.
A. ride in the same direction as traffic
B. ride side by side (并排) with someone else
C. use hand signals when you stop or turn
5. The best title of the list will be _____.
A. Bike Safety Rules
B. Bike Riding Club
C. Bike Riding Skills

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