题目内容
13.He observes carefully but says little.分析 他观察得很仔细,但几乎没说什么.
解答 78.observes
点评 由题干but says little"几乎没说什么"和首字母o可知应填动词observe,句中but连接两个并列的结构,表转折,因此says用一般现在时,由主语是he第三人称单数,因此observe的第三人称单数形式为observes.
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