单选题：Jean did not have time to go to the concert last night becau

题目分类：公共英语三级
题目类型：单选题
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题目内容：

Jean did not have time to go to the concert last night because she was busy （　　）for her examination. A．to prepare
B．to be prepared
C．preparing
D．being prepared

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分类：公共英语三级题型：单选题

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分类：公共英语三级题型：单选题

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Many kinds of animals are believed to have _（　　）from the ear

Many kinds of animals are believed to have _（　　）from the earthA．withdrawn B．vani

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A new technique （　　）, the yields as a whole increased by 20 per cent.A．wording o

分类：公共英语三级题型：单选题

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He tried to （　　）relations with his former wife but he failed

He tried to （　　）relations with his former wife but he failed.A．measure B．maintai

分类：公共英语三级题型：单选题

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