题目内容
17.I study many kinds of birds and thechanges(变化)in their numbers.分析 我研究很多种类的鸟以及它们在数量上的变化.
解答 答案:changes.
根据提示汉语结合语境推测句意是"我研究很多种类的鸟以及它们在数量上的变化.",根据句意判断用名词复数形式,"变化"的英文是change,所以答案是:changes
点评 做这类题型,首先根据所给汉语明确句子所要考查的单词或短语的拼写,再结合相关语法知识对单词或短语做出形式上的变化.
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