英语问题，不大懂。求答案。( )41. Q: Must we do eyeexercises every day, Mi

英语问题，不大懂。求答案。
( )41. Q: Must we do eyeexercises every day, Miss Liu? A: I’mafraid _____.
A) you mustn’t B) you must C) you needn’t D)you can’t
( )42. We may _____ eachother somewhere before.
A) meet B) met C)have met D) to meet
( )43. He doesn’t know_____ next.
A) how to do B) what to do it C) when to do D)where to go
( )44. The lady thinksshe is too fat, and she is planning _____ now.
A) to keep fit B) reduce his weight C) to go on a diet D) stop her from eating
( )45. The house is onfire. Let’s go and _____ the fire together.
A) put off B) put out C)put down D) put away
( )46. It’s _____ thesedays. You’d better _____ your greatcoat before you go out.
A) snowing, in B) snowy, wear C) snowing, have on D) snowy, put on
( )47. His family usedto _____ in the past.
A) go hungry B) be hungry C) going hungry D)being hungry
( )48. Never forget_____ “Excuse me” when you trouble someone.
A) to speak B) to say C)speaking D) saying
( )49. The music _____ so wonderful that Iliked it very much.
A) looked B) heard C) listened D)sounded
( )50. The flat _____ him nearly all hismoney.
A) cost B) took C) spent D) paid