40. Dover Castle, which was built by the Normans, is very impressive building.
41. The house was built more than 100 hundreds years ago.
42. The Lunar New Year is celebrated around January or February by Vietnamese people.
43. Our desk was prepared during the weekend.
44. The meeting is going to be held on the weekend.
45. She asked Lan what kind of books she wanted to buy.
46. I bought myself some goods, new clothes for my new job.
47. If he feels better, he will come to class.
48. don't have
49. doesn't know
50. Mary, who works in a local authority, sings very well.
51. He can't compose a song although he really wants to do it.
52. canceled, has been
53. to stand
54. The teacher asked me what aspects of learning English i found most difficult.