Tom has been ill for three days.改为否定句,一般疑问句和被动语态

Tom has been ill for three days.改为否定句,一般疑问句和被动语态 he has been ill for 3 days 为什么不用sick 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 Mr.Baker has been very ill for over a month,he has been too ill to do his jib. he has been ill for weeks.ill作表语这句谁是系语? l'm _(real) sorry to hear that Tom has been ill 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. She has been ill ＿＿＿ more than tShe has been ill ＿＿＿ more than two weeks.（用for或since填空 1、Susan has been ill for a week.She is____(thin)than before.2、Tom thinks that Shanghai is___(wonderful)than any other city in China.3、Thank you for___(invite)us to attend the party. （ ）she has been ill ,perhaps she'll need some helpA ButB ThoughC AsD For his grandma has been ill in hospital for a week.now she is even_____(illness） she has been ill in bed for many days and she is too w____to walk now 连词成句has,been,for,a,time,long,he,ill Anna has been ill in hospital for three weeks.（用since改写句子） He has been ill for a long time and is unlikely to r___ The ill man has been in hospital for a year.哪错了?为什么?怎么改?