四级完形精选练习及答案(26)

14.A.two B.a C.some D.their 15.A.survive B.surviving C.survives D.survived 16.A.bitter B.happy C.pleasant D.unhappy 17.A.for B.as C.to D.at 18.A.settling B.settles C.settle D.settled 19.A.for B.at C.to D.by 20.A.continue B.continuity C.continuous D.continued

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