题目内容

4.Bicycle-sharing companieshave put(put)more than 200,000 yellow and orange bicycles into service in Beijing in the past six months.

分析 在过去的六个月,共享单车公司在北京已经投放了20多万辆橘黄色的单车.

解答 答案:have put
根据句子里的时间状语 in the past six months,意思是在过去的六个月里,确定句子的时态为现在完成时;再接合句子的主语为Bicycle-sharing companies,所以答案为have put.

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动.

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