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        1. ----Jack, is maths difficult to learn in High school?
          ----Sure. No subject can be learned well __________hard work.
          A.withoutB.throughC.byD.with
          A
          考查介詞的用法。根據(jù)對(duì)話情景,答語(yǔ)中的意思是:肯定了數(shù)學(xué)在高中難學(xué),而且補(bǔ)充說(shuō)明哪門課程都需要刻苦學(xué)習(xí)才能學(xué)好。因?yàn)楸揪涫莻(gè)否定句,所以要用表示否定的介詞without。
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