题目内容
19.Smoking is bad for your health.If someone gives you a cigarette,you mustrefuse (拒绝).分析 吸引对健康有害.如果有人给你烟,你必须拒绝.
解答 答案:refuse 根据情态动词"must"和提示词可知,这里考查词语为动词,情态动词后动词用原形,拒绝为refuse,故答案为refuse
点评 做这道题时应先根据现有句子判断所填词语的词性,然后写出所填动词的适当形式. 要注意的是情态动词后动词用原形.
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