改错Helen has tried twice ,and she is asked to have the third try答案上说把the改成a,表又一,再一.我觉得 the third 表第三次也讲得通啊,她被要求去进行第三次尝试,有什么不对吗?

改错Helen has tried twice ,and she is asked to have the third try答案上说把the改成a,表又一,再一.我觉得 the third 表第三次也讲得通啊,她被要求去进行第三次尝试,有什么不对吗? 高中英语单句改错急!Although he has tried every mean to solve the problems ,he failed in end. May I speak to Helen?---I'm Helen.改错 Helen can speaks three languages.改错 改错：helen speak English and chinese. yangling is too thinner than helen 改错 He will tried tomorrow改错!1111111 every possible means_____.A.has tried B.has been tried C.was tried D.were tried为什么选B Helen has sixlessons every Monday.一般疑问句 Helen has three notebook. 对three提问 句子改错划线部分1.how long have you begun tostudy English? 2.i have borrowed this book for two weeks 3.the river has become very dirty since last August 4.our manager is away today.he has been to guangzhou on business 5.he has gone out for tw Every means has been tried since More than one means has been tried. Helen is a good student.But she runs slow.改错 改错:Helen is doing well in PE than Nancy. 改错：David and Helen are sister and brother helen's friend live with her family改错 Helen's mother is looking for she改错