Noise pollution was a serious problem here .A．in the pastB．in the futureC．s
题型：不详难度：来源：
Noise pollution was a serious problem here .| A．in the past | B．in the future | C．since then | D．once a week |
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答案
| A |
解析
试题分析：in the past在过去；in the future在将来；since then从那时以来；once a week每周一次。句意：过去在这儿噪音污染是一个严重的问题。结合本句谓语动词，可知应用表示过去时间的时间状语，故选A。
点评：解答此类题型的要点是了解各个短语的基本含义及用法的不同，同时注意其表示多个含义的现象，然后结合语境选择合适答案。 |
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