Ответ:

a)

  1. boat
  2. train
  3. plane
  4. car
  5. coach
  6. bicycle

b)

  1. Tom rides his bicycle to school every day.
  2. He always travels by plane when he goes abroad to foreign countries.
  3. My father drives his car to work.
  4. Sally usually takes the intercity train when she visits her grandparents in the next town.
  5. She crosses the river by boat every day.
  6. James takes the coach to work and gets off at Regent Garden station every day.