- If we recycle more, we will help so much paper.

- We will save a lot of trees if we don't waste so much paper.

This book is his??

1. Đề lỗi rồi

2. A

3. A

4. B

5. C

6. A

7. B

8. D

1. will be

2. are preparing

3. in

4. play

5. Swimming 

1. D. aren’t grow 

2. C. judo

3. B. bigger

4. B. Australia

5.  A. long black curly

6. C. creative

7. D. best

8. C. marrowest

9. C. is going

10. B. are

31. player

32. lives

33. has

34. is

35. best

36. You shouldn't stay up late to play computer games.

37. The bus is behind the motorbike.

38. Jacks typing is better than Tom.

39. There aren't any flowers in my house

40. We musn't throw rubbish around our school.

B