【这几道题是总结出的考试中错题,还是不太明白,麻烦您帮助具体解释一下选择的理由,About____studentsinourcollegearefromothercountriesinAsiaAthreehundredBhundredChundredsofDhundredsT】

　　这几道题是总结出的考试中错题,还是不太明白,麻烦您帮助具体解释一下选择的理由,

　　About____studentsinourcollegearefromothercountriesinAsia

　　A three hundred B hundred C hundred sof D hundreds

　　Thetable ismade_____woodandthepaperisalsomade______

　　A of of Bfrom from C of from Dfrom of

　　HelenstudentsMaths________thenbefore,NowshemakesfewermistakesthanJane

　　A careful B more careful C carefullyDmore carefully

　　4.Thecarsmove_______inatrefficjam,Itisabigproblem

　　A slightly Bquickly Cfiercely Dslowly

　　5.Wewillstayinanair-conditioned roomifit_______toohot

　　A will be Bwas Cis Dbe

　　6.______usefulinformationitis

　　A How BHowa C what Dwhat a

　　7.Myfather___backfromAmericainthreedays

　　A comes Bcame Cwillcome Dhascome