英语单选题求详细描述做法
85.Sherefusedtotellusthe____ofthenewsalthoughweinsistedthatsheshould.
A.sourceB.beginningC.birthD.origin
86youmaydo____youtakeinterestin.
A:whateverB:thatC:whichD:however
88.Itisbad______totrimyournailswhensomeoneistalkingwithyou.
A.habitsB.customsC.behaviorsD.manners
89lnorderto_____theboysthegirlhadtorun
A:adduptoB:lookuptoC:cutshortD:keepupwith
90ourmonitor_____thedifficulttaskwillingly.
A:gainedB:gotC:undertookD:offered
求详细做法谢谢