51. John had failed to pay his phone bills for months, so his telephone was ______ last week.

　　A. interrupted B. disconnected C. excluded D. discriminated

　　52. The organic food products are made of natural ingredients, with no ______ flavors added.

　　A. accurate B. regular C. superficial D. artificial

　　53. Jessica is a very religious girl; she believes that she is always ______ supported by her god.

　　A. spiritually B. typically C. historically D. officially

　　54. Jane usually buys things on ______. Her purchases seem to be driven by some sudden force or desire.

　　A. accident B. compliment C. justification D. impulse

　　55. The week-long rainfall has ______ landslides and flooding in the mountain areas.

　　A. set about B. brought about C. come about D. put about

　　56. In the cross-lake swimming race, a boat will be _____ in case of an emergency.

　　A. standing by B. turning on C. getting on D. running down

　　57. The ground is slippery. Hold onto the rope and don’t ______.

　　A. put off B. turn up C. let go D. take apart

　　58. ______ the weather, the athletic meetings will be held on time.

　　A. Instead of B. In relation to C. On behalf of D. Regardless of

　　59. If people keep polluting the rivers, no fish there will survive ______.

　　A. at all cost B. for a long while C. in the long run D. by no means

　　60. The gentleman does not ____the argument but watches the other guests.

　　A. drop in B. fill in C. put in D. join in