VOCABULARY

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Across
  1. 3. A police ... controls the traffic
  2. 4. It means "not dangerous"
  3. 5. Red, yellow, and green signal
  4. 6. Protection for your head
  5. 7. Cars and motorbikes move on this
Down
  1. 1. A person who controls a car or bus
  2. 2. A formal word for cars, trucks, bikes
  3. 4. A place where trains stop for passengers