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三个高中英语填空的问题chineseandvikingsriskedtheirlivescrossingoceansotherlands.空里为什么填insearchof,而不是lookfor?theyperformedagreathistorical.空里为什么填deed,而不是event?peopelwhosaidthatit

题目详情
三个高中英语填空的问题
chinese and vikings risked their lives crossing oceans___other lands.
空里为什么填in search of ,而不是look for?
they performed a great historical___.
空里为什么填deed,而不是event?
peopel who said that it was impossible for the chinese or vikings to discover America will have to ___
空里为什么填back out,而不是change?
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答案和解析
句子里已经有谓语动词了,所以只能用介词短语:in search of,不能用动词短语的原形look for,如果必须用,可以改为: to look for.deed指事迹,历史功迹等.event主要指重大事件,体育赛事等.back out指退却、返悔、食言.cha...