定语从句：1,Themostimportantthing___weshouldconsideristhefirstidea____hehasmentionedinthespeech.A.that；whichB.that;that请问为什么第二空只能填that不能填which?2,TheexcitingdayalltheAmericanbasketballfa

　　定语从句：

　　1,Themostimportantthing___weshouldconsideristhefirstidea____hehasmentionedinthespeech.

　　A.that；whichB.that;that请问为什么第二空只能填that不能填which?

　　2,TheexcitingdayalltheAmericanbasketballfanslookedforwardto___atlast.

　　A,comingB,came.请问答案为什么是B而A不对呢?

　　3,Jane:Whomwouldyouliketotalkwithattheendofthelecture?

　　Mary:Thelady____MissWhite.

　　A,wecallB,iscalled.请问为什么.那么B为什么不对呢?