—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。
