【Heisnowworkingdayandnightsimplywassetup,_asamethodtoprotectthegovernmentbulidingfromoutsidebreak-in.A.regardingB.regardedC.toregardD.havingregarede不好意思，我自己看了都觉得好笑。Heisnowworkingdayandnight】

　　Heisnowworkingdayandnightsimplywassetup,_asamethodtoprotectthe

　　governmentbulidingfromoutsidebreak-in.

　　A.regardingB.regardedC.toregardD.havingregarede

　　不好意思，我自己看了都觉得好笑。

　　Heisnowworkingdayandnightsimplyforoneday__hecanenjoythewealthandcomforehehasearnedtoday.

　　A.whatB.thatC.whenD.which我不明白that为什么不可以，同位语嘛