1. manatte

2. furry

3. enormous

4. playful

5. aggressive

6. gray

7. spotted

8. kangaroo

9. chimpanzee

10.cheetah

11.mangrove

12.swamp

13.habitat

14.aquatic

15.feed

16.underwater

17.vegetation

18.weigh

19.pound

20.discover

21.polluted

22.present progressive

23.present simple

24.infinitive

25.passive voice

26.present perfect

27.suitable

28.tiny

29.cage

30.disgusted

31.educate

32.care for

33.urge

34.expression

35.recycle

36.built

37.stuff

38.pull

39.glue

40.roof

41.discard

42.tile

43.fence

44.can

45.recently

46.planet

47.society

48.president

49.inspiration

50.spare

51.model

52.Winterbourne 温特伯恩