2012年05月21日 12时04分，《2011英语:英语四级完形填空精选练习及详细解析(37)[1]》由留学群liuxuequn.com英语编辑整理.
14.A.pieces B.units C.parts D.elements
15.A.receive B.accept C.bring D.catch
16.A.conventional B.common C.general D.normal
17.A.shifts B.converts C.modifies D.varies
18.A.what B.which C.that D.why
19.A.put up with B.keep up with C.come up withD.catch up with
20.A.from B.than C.as D.away
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