She is not so cheerful as she used to be.是什么从句?还有as为什么不能换成what?

Lily is not outgoing!Istead she is so s() _____ so busy,she should come to help us.A.Were she not B.Was she C.If she is not D.Not were she She is so young.she can not go to school 合并成一句She is ( ) young( )she can not go to schoolShe is ( )young ( ) go to school She is so cute? She is so pretty, Love is not so she no is not she is not she is not Lucy is new here .so she has---friends here.A.not B.no C.not many D.not some she must be in red .no,（ ）she wears a green coatA：she is B:she must not C:I dou't think so.D:I am not how is it that she is not so cheerful as she used to be 这句话应该怎样翻译, She's not the best student in her class,but ___ the worst.A.nor she is B.neither is she C.so is she D.so she is he doesn't want to do her homework ,so she is not h-----student. compare with her sister.she is not so clever这句话是不是有两个谓语? Wendy’s parents are not so busy as she.(保持原意）Wendy is She is always (patient)with young children.So they don not like her. -Nancy is not coming tonight.-But she---(say) so.求详解