题目内容
5.Parents werefrightened(frighten) to bring their children for vaccination.分析 父母很害怕带孩子来接种疫苗.
解答 答案:frightened
frighten是动词,使…害怕;根据句意可知,此处指父母感到害怕,故使用frightened形式,构成固定短语be frighened to do害怕做某事.
点评 解答此类题目首先要掌握句意,然后根据语法填写正确的答案.

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