问几道英语单选题1.Withoutfacts,wecannotformaworthwhileopinion,forweneedtohavefactualknowledge_____ourthinking.A.uponwhichtobaseB.whichtobebasedonC.whichtobaseonD.towhichtobebasedon2.Sofar,he_____inremembering

　　问几道英语单选题

　　1.Withoutfacts,wecannotformaworthwhileopinion,forweneedtohavefactualknowledge_____ourthinking.

　　A.uponwhichtobaseB.whichtobebasedon

　　C.whichtobaseonD.towhichtobebasedon

　　2.Sofar,he_____inremembering2000Englishwords.

　　A.hassucceededB.succeedsC.succeededD.issucceeding

　　3.—IheardthatMarywontheprizeofthemathcontest.

　　—_____Shewasnotinterestedinitatall.

　　AYou'rekidding!B.Sowhat?C.Whynot?D.Notreally.

　　麻烦高手咯.写明理由.