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        1. — Daniel, the speech competition will begin soon. Please ________ the microphone a bit to make everyone hear more clearly.
          — No problem!
          A.turn onB.turn upC.turn offD.turn down
          B

          試題分析:turn on打開,發(fā)動(dòng);turn up發(fā)生,開大;turn off關(guān)掉,關(guān)閉;turn down減小,關(guān)低。句意:丹尼爾,演講比賽就要開始了。請(qǐng)把麥克風(fēng)調(diào)聲音大一點(diǎn),以便讓每個(gè)人都能聽得更清楚一些。結(jié)合語境可知選B。
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