来自简琤峰的问题
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？
Thequestionisdifficult__
A.foranswering
B.forbeinganswered
C.tobeanswered
D.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？
