's缩写是is吧.She's been invited,这句话什么时态?这句话我怎么感觉应该是 she has been

's缩写是is吧.She's been invited,这句话什么时态?这句话我怎么感觉应该是 she has been she is been always...这是一个什么时态? “She has never been so sexy”这句话是什么意思? What has she been doing?这句话怎么理解,可以理解（她干什么了? It has been的缩写 It’s been It is Tom 的缩写It’s Tom 这两者缩写后的发音是一样的 对不起我没说清楚,She's been living可以等于she has been living吗? Tommy`s been to the toilet three times this morning.这句话的时态是什 She has never bought some food .这句话什么时态? 请问怎么翻译这句话Marilyn Monroe's work in films has not always been She has been swimming s----------- she was five years oid. 英语语法求助Mr.D has been worried all week.这句话是什么时态?has been worri Mary's friend is quieter than she is .请问这句话后面为什么是she is