46. I suggest we __________ a break and finish this later.

　　A. took B. take C. taking D. to take

　　47. He's the sort of person who __________ you at parties.

　　A. bears B. bores C. bored D. bore

　　48. I'm glad you told me about the show being cancelled, __________ I'd have traveled all the way to Glasgow for nothing.

　　A. otherwise B. because C. therefore D. however

　　49. The __________ American has not even thought about next year's election.

　　A. normal B. usual C. average D. common

　　50. A tiny baby soon learns to __________ its mother's face from other adults' faces.

　　A. select B. make C. differ D. distinguish

　　51. Cats should always have __________ to fresh, clean water.

　　A. to B. with C. for D. in

　　52. Have you brought the old man his stick, which he can never do __________ when walking?

　　A. for B. with C. without D. away

　　53. My mother manages the entire __________, including taking care of my grandfather.

　　A. family B. home C. house D. household

　　54. Another subway has been __________ operation since last December.

　　A. under B. in C. on D. with

　　55. The lady was __________ of the quality of the service.

　　A. entrusted B. assured C. confirmed D. guaranteed