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Some teenagers _______ their health because they often expose themselves to so many electric products.
A.have damaged B.are damagingC.damagedD.will damage

答案
B
解析

核心考点
试题【Some teenagers _______ their health because they often expose themselves to so m】;主要考察你对一般现在时等知识点的理解。[详细]
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30. The subway __________in our city, and I’m sure there will be fewer traffic jams in the future.
A.is buildingB.is builtC.is being builtD.will build

题型:不详难度:| 查看答案

What I said and did at your house last night_________just between you and me.
A.isB.areC.have beenD.had been

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The price_________recently. I wonder whether it will remain so.
A.was going upB.went upC.has gone upD.has been going up

题型:不详难度:| 查看答案

What an accident! If the driver_________ carefully, things would not be as they are.
A.has drivenB.droveC.had drivenD.was driving

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Mum, you really need to have a rest! You      in the kitchen ever since you came back home three hours ago.
A.had workedB.were workingC.have been workingD.worked

题型:不详难度:| 查看答案
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