句子有三种形式：肯定句%、否定句和疑问句。
There are three forms of the sentences affirmative, interrogative, and negative.
句子有三种形式：肯定句、否定句和疑问句。
There are three forms of the sentences affirmative, interrogative, and negative.
句子有三种形式：肯定句、否定句和疑问句。
There are three forms of the sentences affirmative, interrogative, and negative.
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