Before the coming YSL auction, the Christie’s Auction(拍卖) Company had advertised

Before the coming YSL auction, the Christie’s Auction(拍卖) Company had advertised

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Before the coming YSL auction, the Christie’s Auction(拍卖) Company had advertised all of the articles ______ including the Chinese heads of Rabbit and Rat.
A.having soldB.to be soldC.sellingD.sells

答案
B
解析

举一反三

Scientists ______ SARS for several months before a major discovery was made in the field.
A.had been studyingB.have been studying
C.have studiedD.are studying

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The task _____ more difficult than we expect.
A.proved toB.proved usC.was provedD.proved

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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

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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

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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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