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51. do
52. preparation
53. taken
54. too
55. it
56. ever
57. dangerous
58. keeping
59. example
60. enough
41.put off
42.take off
43.cheer up
44.look after
45.look back
46.clear up
47.go on
48.bring along
49.suck up
50.call on
21. understood
22 logical
23. poverty
24. comparatively
25. limitations
26. encourages
27. careless
28. traditionally
29. increasingly
30. joyful
nếu sai thì thông cảm cho mình nhé
1. She (not/see) hasn't seen him for a long time.
2. I(do)did my Maths homework yesterday.
3. They (visit)visited a farm two weeks ago.
4. The children (not/be)weren't at home last weekend.
