48. Urban congestion would greatly be relieved if the____charged on public transport were more reasonable.
A. prices B. tickets C. fees D. fares
49. You’d better let me know as soon as there is a(n)____position in the branch office.
A. empty B. vacuum C. hollow D. vacant
50. They will never reconcile themselves to____.
A. defeat B. their defeat C. be defeated D. have their defeat
51. The matter is not to be ____.
A. watched for B. waited on C. taken over D. trifled with
52. The mother almost____when she learned that her son was shot dead.
A. fell down B. came down C. fell apart D. went to pieces
53. While doing calculation for the project, the designers____a new solution to a geological problem.
A. fell into B. stumbled upon C. set out D. discovered