2. 公务员
  3. Over the past several decades, governments at all levels______no efforts to improve people’s living conditions.

Over the past several decades, governments at all levels______no efforts to improve people’s living conditions.

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问题 Over the past several decades, governments at all levels______no efforts to improve people’s living conditions.
选项 A、spare
B、spared
C、had spared
D、have spared
答案D
解析 由“Over the past several decades”可知本句用现在完成时，故选D。
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