三、单句改错(共10小题;共10分)
41. I had much work to be done, so I was very busy.
42. Has the bike repaired yet?
43. She was seen make paper flowers in the room.
44. The murderer had arrested before Mr. Wang arrived.
45. We are made read English for an hour every morning by our English teacher.
46. The pen written well. I'll buy another one.
47. This bike is buy in Harbin, isn't it?
48. Did the window cleaned yesterday?
49. It is a very good bike. It is ridden very well.
50. No one hurt as it was a school holiday when the fire happened.
，我们将会及时处理。
