-The machine is too old to work -we need to buy a new one that is easy to_
问题描述：
-The machine is too old to work -we need to buy a new one that is easy to_
A.operate B.operate on C drive D.run
答
A
operate 操作,运转
operate on 给……做手术
drive没有操作的意思
run跑,移动 运行
英汉双语词典中有operate the machine 的例子,所以我觉得应选Arun有运行，运转，操作的意思，为什么不行run强调开动的意思，例如Let me run the machine.让我来开动这台机器。operate 有运行 操作 控制等意思 这里更符合语境