题目：
—Who should be responsible for the accident? —The boss, not the workers. They just carry the orders________. A.as told B.as are told C.as telling D.as they told
答案：
A
解析：
句意：–谁应当对这起事故负责任?–老板，不是工人，他们只是执行命令罢了。as引导的是方式状语从句，它是省略句，完整的是as they were told，这里把主语及be 都省去，故选A。