题目内容
They often take walk after dinner.
| A．a | B．∕ | C．the | D．an |
A
解析试题分析：句意：饭后他们经常去散步。短语take a walk去散步，本句中walk用作可数名词，表示一次散步，词首音素是辅音，不定冠词用a，故选A。
考点：冠词的习惯用法
点评：英语中冠词也有习惯用法，在英语多年的发展变化中形成了一些约定俗成的固定句式和短语，部分虽然可以按照语法规则解释过去，但是如此以来就要浪费很多时间。所以对于此类问题的最好方法，尽可能多的熟记一些固定句式和短语，答题时凭记忆完成即可。
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