Task 3. Choose the best option to complete each sentence. Circle A, B or C.

Question 29. When you create new products from used materials, you are _____.
A. recycling
B. reducing
C. reusing
Question 30. In the future, robots can work as a _____ to keep our house feelings.
A. watch
B. guard
C. viewer
Question 31. Fansipan Peak is _____ than Son Tra Mountain.
A. more high
B. higher
C. highest
Question 32. I’m writing _____ poem. _____ poem is about 3Rs.
A. a/ The
B. a/ A
C. an/ The
Question 33. When we go out, my dad always carries the _____ bag of all.
A. heavy
B. heavier
C. heaviest
Question 34. My home robot can _____ clothes for me.
A. plant
B. water
C. iron
Question 35. If you come to Vietnam, don’t forget to try its _____ street food.
A. tasty
B. easy
C. helpful
Question 36. When I have free time, I like to _____ the Internet.
A. go
B. surf
C. play