简单句、并列句和复合句 （一）句子种类两种分类法 1、按句子的用途可分四种： 1）陈述句（肯定、否定）：He is six years old; She didn’t hear of you before. 2）疑问句（一般、特殊、选择、反意）：Do they like skating? How old is he? Is he six or seven years old? Mary can swim, can’t she?
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