III. WORD FORMATION (1.2 points)

Write the correct forms of the words in the brackets.

17. Students can join one of our _______________ to clean rivers and beaches all around Vietnam. (CLEANUP)

18. We are taking these old newspaper to the _______________ bins in town. (RECYCLE)

19. You can help by _______________ money to the charity. (DONATE)

20. We can _______________ empty glass jars to store food, like jam and nuts. (USE)

21. Trees are very _______________. They give food to people and animals. (USE)

22. Act Green Vietnam is an _______________ charity in Ho Chi Minh city. (ENVIRONMENT)