高中英语的几道题
一.
---------adiaryeverydayandyou'llimproveyourwriting.
A.KeepingB.TokeepC.KeepD.Ifyoukeep
答案：C
为什么不能选D?
二.短篇阅读理解
WilmahelpedtheUSwomen'srelayteamwinthechampionshipintheOlympicGames.Itwasexcitingtoseehercomefirstintherace.Shealsowonthe100-metreand200-metredashes,andinthe100-metredashshesetanewworldrecord.
ThevictorywasunusualforWilma,Asababyshehadbeenveryweak.Latershealmostdiedofaseriousillness.Whensherecovered,shecoulin'tevenmoveherleftleg.Itseemedthatshewouldneverbeabletowalk.Buthermotherhelpedheralot.SherubbedWilma'slegseveryeveningandthisgaveWilmaachance.
LongyearsoftreatmentandexercisechangedWilmabecameanationalchampion.Shehadcomealongway.
QUESTION:WhywasthevictoryunusualforWilma?
A.BecauseWilmawasawoman
B.BecauseWilmacouldn'twalkforyearswhenyoung
C.BecauseWilmadidn'tdoanyexercise
请说明答案及理由