Thequestionisdifficult__A.foransweringB.forbeingansweredC.tobeansweredD.toanswer不一定选出来,但麻烦说明原因或想法,请问todo在什么任何情况下能表被动？

问题：Thequestionisdifficult__A.foransweringB.forbeingansweredC.tobeansweredD.toanswer不一定选出来,但麻烦说明原因或想法,请问todo在什么任何情况下能表被动？

答案：↓↓↓

沈富华的回答：

网友采纳　　d　　bedifficulttodo排除a和b　　这里是主动表被动,选d