41. Please the careful when you are drinking coffee in case you ______ the new carpet.
　　A) crash
　　B) pollute
　　C) spot
　　D) stain

　　42. Id rather read than watch television ; the programs seem ________ all the time.
　　A) to get worse
　　B) to be getting worse
　　C) to have got worse
　　D) getting worse

　　43. Convenievce foods which are already prepared for cooking are ______ in grocery stores.
　　A) ready
　　B) approachable
　　C) probable
　　D) available

　　44. When I caught him ______ I stopped buying things there and started dealing with another shop.
　　A) cheating
　　B) cheat
　　C) to cheat
　　D) to be cheating

　　45. It is important that enough money ______ to fund the project.
　　A) be collected
　　B) must be collected
　　C) was collected
　　D) can be collected

　　46. Some old people dont like pop songs because they cant ____ so much noise.
　　A) resist
　　B) sustain
　　C) tolerate
　　D) undergo

　　47. If only the committee ______ the regulations and put them into effect as soon as possible.
　　A) approve
　　B) will approve
　　C) can approve
　　D) would approve

　　48. _____ one time, Manchester was the home of the most productive cotton mills in the world.
　　A) On
　　B) By
　　C) At
　　D) Of

　　49. ______ it or not ,his discovery has created a stir in scientific circles.
　　A) Believe
　　B) To believe
　　C) Believing
　　D) Believed

　　50. Mr. Morgan can be very sad ______ , though in public he is extremely cheerful.
　　A) by himself
　　B) in person
　　C) in private
　　D) as individual