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题目
题型:不详难度:来源:
—I wonder how much you charge for your services.
—The first two are free ________ the third costs $30.
A.whileB.untilC.whenD.before

答案
A
解析
while是并列连词,表示对比,意为“而”。
核心考点
试题【—I wonder how much you charge for your services.—The first two are free ________】;主要考察你对连词等知识点的理解。[详细]
举一反三
It is often said that the joy of traveling is ________ in arriving at your destination ________ in the journey itself.
A./;butB./;orC.not;orD.not;but

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I thought we"d be late for the concert,________ we ended up getting there ahead of time.
A.butB.orC.soD.for

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You have failed two tests.You"d better start working harder, ________you won"t pass the course.
A.andB.soC.butD.or

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Help others whenever you can________you will make the world a nicer place to live in.
A.andB.soC.butD.or

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Knowledge is the food of thought ________,as long as it is put in our brain,we will grow wiser.
A.butB.whenC.thenD.and

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