the two old sisters,having been separated for years,held each other and burst into tears .为什么用having been separated 不用 had been separated

She is_____ _____(old)of the two sisters. 一道英语语法题目 The two old sisters,( ) so long,held ea一道英语语法题目 The two old sisters,( ) so long,held each other and burst into tears.答案是having been separated 为什么不是had been separated? The two sisters and their mom look the same.=The two sisters( ) ( )their mom. She is the --- of the two sisters,but she is much ---than me A.elder,yuonger,A.elder;youngerB.younger;elderC.young;elderD.old;younger 4.The two old sisters,__so long,held each other and burst into tears.A.being separated B.having been separatedC.having separated D.had been separated the two old sisters,having been separated for years,held each other and burst into tears .为什么用having been separated 不用 had been separated Lucy is the cleverest of the two sisters.改错 the two sisters and their mom look the same改为同义句the two sisters ____ ____ their mom Of the two sisters ,she is_______________(较胖的） The two sisters look (different)为什么要用形容词! 17.____look much alike.A Smihts' sisters B Smith sisters C Two Smith sisters D The Smith sisters选什么啊,原因?求原因。 the two old sisters,_____ so long,held each other and burst into tearsa.having been separated b.having separated我觉得B好像也可以理解.请大侠赐教! 39. The two old sisters, so long, held each other and burst into tears. （2013年虹口二模）A. being separated B. having been separatedC. having separated D. separating不是说having been done不做后 she is the older of the two sisters.为什么用“the,谢. She has got two sisters对two sisters 提问 with the help of their father ,the two sisters developed their tennis c------ smoothly do you see the two girls standing at the bus stop?,of them are my sisters 英语语法：这是什么比较级结构?She is the youger of the two sisters.