Put use in April 2000.the hotline was meant for residence reporting water and heating supply breakdo

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编辑：chaxungu时间：2026-04-27 02:45:26分类：高中英语题库

【题目】Put __________ use in April 2000，the hotline was meant for residence reporting water and heating supply breakdowns.

A. into B. in

C. at D. on

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【答案】 A

【解析】

句意:2000年四月开通的热线主要用于居民报告水暖供应问题。put...into use意为“将……投人使用”；句中put into use...为过去分词短语，在句中作状语。