关于she is backis是动词,back也是动词吗?强调什么呢?

关于she is backis是动词,back也是动词吗?强调什么呢? She is as tall as me 中的tall 是什么词 is 是系动词还是动词 一道关于情态动词的英语题： -Where is Mary? -She _ in her classroom.-Where is Mary? -She _ in her classroom.A. must be B. should be C. can be D. must have been答案是A.我想知道B为什么不对. _____ ______ is she then?She is______.是关于birthday 请帮解一题高中英语 it is strange that she ( ) so angryA is B be 这里应该是考主语从句 ,用should + 动词原形 为什么是一定是be 英语!关于 SHE'S 的含义 怎样判断是SHE IS 还是SHE HAS/?例子 be动词填写She is a( ) girl 关于定语从句的谓语动词she prefers pieces of music which ( ）great lyrics.A have B has选哪个,是看misic还是看pieces 关于Is she your sister?的问题is为动词,按照常理来说动词后面的人称代词用宾格,she的宾格是her,按照“动宾”的说法,所以应该是IS her your sister? 但是将它变为一般疑问句是又行不通了.所以想问问 and 前后的动词怎样用?到底是并列动词还是名词例 she is beautiful and likes to help others. It is strange that she should have done it.句中should是情态动词吗? she is attracting eyes all the time句中的attracting是作形容词还是动词? She is always trying out new ideas ,为什么动词是ing形式? like是动词么如果不是那为什么说she likesshe is liking Jenny is only three years old.she is too young______alone at home.A.to leave 动词不定式一般式主动形式B.to be leaving 动词不定式进行时主动形式C.to be left 动词不定式一般是被动形式D.to have been left 动词不定式 how is your mother?正确答案应是：A.she is at school 　B.she is forty　 C.she is OK　 D.she is teacher she is married.这句中is是助动词,系动词还是实义动词?is和married分别是什么词?为什么?请分析一下这句的结构! she is ill是主+谓+表语的形式,但是is是谓语吗?谓语不一般都是动词吗?