摘要： Twenty-three hours has passed after the explosion in the mine, but rescue efforts to recover the missing carried out. A. are still being B. have already been C. are always D. will soon be [解析]选A本句意为“矿井爆炸已过23小时了.但对失踪人员的搜索还在进行中.
网址：http://m.1010jiajiao.com/timu3_id_2530520[举报]