题目内容
15．Sales girls try to persuade peopleto buy （buy） things even if they are not necessary．分析 促销小姐们试图说服人们去购买即便是他们不需要的东西．
解答 答案：to buy
分析句意可知，此处的意思是：说服人们去购买他们不需要的东西；因此这里考查的应是固定短语persuade sb．to do sth．"说服某人干某事"的用法；故填to buy．
点评 本题考查的是固定短语persuade sb．to do sth的用法．
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