They use computers to keep the traffic smoothly.A. being run B. run C. to run D. running

查询谷 - www.chaxungu.com

编辑：chaxungu时间：2026-04-27 02:58:03分类：高中英语题库

【题目】They use computers to keep the traffic _________ smoothly.

A. being run B. run C. to run D. running

在线课程

【答案】D

【解析】

试题分析：考查非谓语动词辨析。keep sb./sth. doing sth表示让……一直做……。句意：他们用电脑让交通顺畅。根据句意可知选D项。