21. did you do
22. is climbing
23. didn't get
24. will be
25. playing
26. went
27. will leave
28. have worked
29. to go
30. hasn't written
31. No, she doesn't
32. She doesn't listen hard
33. No, she doesn't
35. was
36. school
37. farming
38. poetry
39. In the past women used to do the house work without the help of modern equipment
40 The doctor advised me to take a few days off
41 She has learnt to swim for 5 years
42. Lan told me to give Tom that dictionary
43. My house isn't as nice as your
44. Lulu is as pretty as her sister
45. Cats are different from dogs
46. Nga is interested in reading books in her free time.