17 . For years the people — - my hometown depended — - steel , coal and fishing for their livelihood . A ) at / for B ) from / to C ) of / by D ) in / on E ) out of / on
18 . _____ mistake I opened Mary ' s letter instead _____ my own . She was very angry _____ me and said that I ' d done it _____ purpose . A ) By / of / with / with B ) On / -- / at / on C ) By / of / with / on D ) With / -- / to / by E ) By / of / to / on
19 . Nowadays there is no advantage _____ being a woman but _____ the old days a clever woman could take advantage of being female . A ) on / on B ) in / at C ) in / in D ) for / at E ) of / on
20 . While _____ their way from the coast _____ the mountains they were attacked _____ a jaguar . A ) on / to / by B ) on / to / with C ) at / to / by D ) on / to / to E ) -- / with / by
1 . B 2 . C 3 . A 4 . A 5 . D 6 . E 7 . D 8 . B 9 . E 10 . D 11 . B 12 . A 13 . E 14 . C 15 . E 16 . A 17 . D 18 . C 19 . C 20 . A