题目内容
15．Tuition，rooms，books andmedical care are all free in public schools in Canada．（medicine）分析 在加拿大的公共学校，学费、房间、书籍和医疗保健都是免费的．
解答 答案：medical．
提示词medicine是名词，意为"药"，根据所给单词结合语境 可以推测句意为"在加拿大的公共学校，学费、房间、书籍和医疗保健都是免费的．"，由于设空处后面有名词care且和care构成短语"医疗保健"，所以应填medicine的形容词形式medical，故答案为：medical．
点评 本题考查用所给单词的适当形式填空，首先要根据语境明确句意，然后再根据相关语法对所给单词在形式上做出正确的变化．
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