Plastic bottles can be recycled but they need cleaning thoroughly, _______ they?


  1. A.
    needn't
  2. B.
    don't
  3. C.
    mustn't
  4. D.
    can't
B
試題分析:考查反義疑問句。But連接兩個(gè)并列句，由此判斷反問句是對(duì)后面的句中進(jìn)行反問，need做情態(tài)動(dòng)詞時(shí)，后面用動(dòng)詞原形，由此判斷句中need是實(shí)義動(dòng)詞，所以反義問句要用助動(dòng)詞do構(gòu)成，正確答案是B。 句意：塑料瓶子能夠被回收利用，但是他們得需要徹底的清洗，是嗎？
考點(diǎn)：考查反義疑問句。
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