谁能帮我解解几道英语题
1.Thismagnificenthotel,_____attheturnofthecentury,hasgotover200beautifullydecoratedfirst-classroomsandspaciousgardensallroundit.
A.havingbeenbuiltB.tobebuiltC.beingbuiltD.built
选D
2.Informingthepatientofhisseriousillnessrisks_____hishopesothathemayrecovermoreslowly.
A.tobedestroyingB.todestroyC.destroyingD.beingdestroyed
选C
3.Herearetwoticketsfortheconcert.Youmayinvite_____takesaninterestinittogowithyou.
A.whoeverB.nomatterwhoC.anyoneD.whom
选A
4.Whendeeplyabsorbedinexperiment,_____sheoftenwas,Mariewouldforgetallabouteatingandsleeping.
A.thatB.whichC.asD.where
选C
这些题虽然知道答案但是不知道缘由.所以请教大家.
希望大家解释得详细一些,说说句子中都涉及到哪些词法、句法、语法,哪些词组等等.
谢谢!