摘要： the website of the Fire Department in your city.and you will learn a lot about firefighting. A.Having searched B.To search C.Searching D.Search 答案 D 解析 祈使句+and+简单句.相当于if引导的条件状语从句.

网址：http://m.1010jiajiao.com/timu_id_3872511[举报]