题目内容
15．The Greenshave collected（collect） more than 1000old clocks and watches in the past 5years．分析 格林一家人在过去的5年中收集了1000多块旧钟表．
解答 答案：have collected 考查单词填空．根据句意格林一家人在过去的5年中收集了1000多块旧钟表，要用现在完成时完成句子，构成是主语+have/has+过去分词，主语The Greens是复数形式，故用have，collect的过去分词是clooected，故答案是have collected
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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