题目内容

8．I'm cautious optimistic．cautious改为cautiously．

分析 我谨慎乐观．

解答 答案：cautious改为cautiously
此处用在系动词am之后，修饰形容词optimistic；故用副词cautiously．

点评 做本题时，需要掌握副词主要用来修饰动词，形容词，副词或其他结构的用法．

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