Section B
Unit 6 Topic 3Bicycle riding is good exercise.
Complete the sentences with the proper forms of the words.
1. The environment is becoming worse and worse because of the _________ (           )2. Two __________ (                          ) got hurt in the traffic accident yesterday. 3. The boy is ________ (             )about toy cars.4. Peter wanted to walk to the zoo, but Susan _________ (                      ) with him. 5. An accident can happen ________ (                   ) at any time.
pollution
passengers
crazy
disagreed
anywhere
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