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    The suggestion they all objected to________to be effective finally.

    A．proving     B．prove     C．had proved          D．proved

     

    【答案】

    D

    【解析】

    试题分析：句意：他们都反对的那个建议最终证明是有效的。这里they all objected to是定语从句，先行词是suggestion，关系词作宾语在这里省略了，空格处缺少整个句子的谓语动词，故排除AB，过去完成时是一个相对的时态，必须有一个它的参照的过去式，而这里没有，根据句意故选D。

    考点：考查动词时态的用法。

    点评：本题难度适中。动词时态是高中阶段的重难点之一，高中要求掌握的时态需要考生牢记它们的用法，但是时态必须要结合一定的语境才能做出正确的判断。

    即学即练：——Bob has gone to California.

    ——Oh, can you tell me when he        ?

    A. has left    B. left    C. is leaving   D. would leave

    解析：B。句意：“——Bob已经去了加利福尼亚。——噢，你能告诉我他什么时候离开的?”Bob has gone to California，去的动作已经发生过，说明他离开的动作发生在过去，因此使用一般过去时。选B。

     

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