SAT替换题求助!The Pony Express was an ingenious system forcarrying mail; it was in existence only briefly,however,before the telegraph system made itobsolete.(A) mail; it was in existence only briefly,however,(D) mail,having existed only briefly

SAT替换题求助!The Pony Express was an ingenious system forcarrying mail; it was in existence only briefly,however,before the telegraph system made itobsolete.(A) mail; it was in existence only briefly,however,(D) mail,having existed only briefly pony SAT语法题（OC）；有关ving就近修饰名词,The Pony Express was an ingenious system for carrying (mail,having exixted only briefly) before the telegraph system made it obsolete.括号就是划线.正确答案是：mail; it was in existence o sat数学题求助 这个英文怎么读“pony”如题! sat语法题求助,为何选E不选A Sat语法题求助,C项为何错了 一道SAT 语法 优化句子题.2.Even the play’s most minor characters work together with extraordinary skill,their interplay creates a moving theatrical experience.A,their interplay creates a moving theatrical experience.B,a moving theatrical ex 4道SAT语法题.答案我知道.前两题是挑错误,后两题是替换划线部分. SAT三个替换句子!急!谢谢 The Ex 什么意思 the ex.of break pony是什么意思 Pony是什么 I saw the dog yesterday.句子中的saw可替换的单词有哪些The wind blew away my scarf.句子中的scarf可替换的单词有哪些 She sat in her room.句子中的sat可替换的单词有哪些最少要3个可替换的！不管意思相不相 SAT 替换题!In many resturant,they have gratuity policies to prevent patrons from leave inadequate tips for the waitstaff.将they have gratuity policies to prevent patrons from leave 替换成gratuity policies to prevent patrons from leave 为什 雅思大作文思路求助!Some ex-prisoners commit crimes after being released from the prison.What do you think is the cause?How can it be solved? SAT关于语法SVO,doing的问题The Pony Express was an ingenious system for carrying mail; it was in existence only briefly,however, before the telegraph system made it obsolete.引号部分为画线部分A.mail; it was in existence only briefly,