1Itis()thatsheshouldcomelate.
AapityBnowonderCshame
选B为什么不行?
2Carsdocauseussomehealthproblemsinfactfarmoreserious()thanmobilephones.
AoneBonesCitDthose
我是选D.为什么D不行,those能当替代词吧?
3Weneedanewcupbosrdforthekitchen.SoPetermade()
fromsomewood.
AitBone
A为什么不行?