We make questions by:我们形成疑问形式通过：
1: moving an auxiliary to the front of the clause:将助动词提前：
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2: … or by moving a modal to the front of the clause:或是把情态动词提前：
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3: The present simple and the past simple have no auxiliary. We make questions by adding the auxillary do/does for the present simple or did for the past simple:一般现在时和一般过去时没有助动词。我们通过加do/does来变成疑问形式：
发表于 2016-8-8 08:51:54
