she has been ill for 3 days,这里为什么要用been,直接she has ill 不行吗

She has been ill for over two days .(改为同义句） she has been ill for____ ____two days. she has been ill for 3 days,这里为什么要用been,直接she has ill 不行吗 （ ）she has been ill ,perhaps she'll need some helpA ButB ThoughC AsD For she has been ill in bed for many days and she is too w____to walk now his grandma has been ill in hospital for a week.now she is even_____(illness） She has been ill ＿＿＿ more than tShe has been ill ＿＿＿ more than two weeks.（用for或since填空 She has fallen ill for a week because of the bad weather ,my mother fell ill and lay in bed.she has beenA has been ill was illB FELL ill has fallen illC fell ill has been illD fell ill is illbecause of the bad weather my mother ---------and lay in bed .she -----for a week .选什 he has been ill for 3 days 为什么不用sick Mr.Baker has been very ill for over a month,he has been too ill to do his jib. She has been working for 20 hours he has been ill for weeks.ill作表语这句谁是系语? Linda has been ill for two days .Let's go and see __ after school.OK.Let's buy some fruit for __a she,she b her,her c she,her d her ,she mary has been ill in bed for a week,I wonder if she is () better now.A much B some Cany D very说明为什么 ⒈Mrs Guo has been ill for week.But now she is ＿than before.(well)大哥哥,大姐姐!求求你们了 Her mother is ill.She has been( )for two weeks.A.in the bed B.on the bed C.in bed D.on bed lisa's mother has been ill for two years.这个句子中为什么有been? He has been ill for several weeks,so he has ______ in learning Maths.