21. stay at home than go out tonight

22. Ba carry those books back home

23. old enough to understand these things

24. I didn't so much to do today

25. a playwright but also an actor

26. wasn't finished on Monday

27. last saw Lan at Tam's birthday party

28. what he told you

29. where they went on holiday

30. where the dentist's office is

31. how many people there are in our school

32. is not clean enough for me to wear

33. is not difficult to boil an egg

34. were built by the ancient Egyptians

35. as hot as Cairo

36. been in Hanoi for 2 years

37. didn't eat too much meat, she wouldn't be overweight

38. That road is too narrow for cars to park 

39. Ba is not only talented but also handsome

40. I wish I knew something about her family

41. You had better wear a coat when you go out

42. Is this the cheapest pen you have

43. I haven't seen Linda since New year's Day

44. Hoa would rather play ping pong

45. I dislike watching TV