请问was 与have been用法的区别was也是be动词 在表示过去时时如何区分was 和have be的不同用法.

请问was 与have been用法的区别was也是be动词 在表示过去时时如何区分was 和have be的不同用法. have been 的用法? was made与has been made的区别及用法 请问HAS BEEN和 HAVE BEEN HAD BEEN的用法以及分别加DONE后的用法请问HAD BEEN 单复数用法有区别吗 have been seeing /have been seen/ have seen的用法.以及I was saw 和I saw的用法请说清楚过去时和完成时的用法. have been+adj的用法 have ever been 的用法? have been on的用法 have been to,has been to ,have been in ,与have gone to,has gone to 的区别和用法. At last he ___finishi the work ahead of time.A.couldB.was able to C.could have done D.would have been able to请问一下B.D的区别、would have been 的意思是什么、?be able to do 与can do 的区别是什么?wouldn't/won't的用法是什么 请问have/has gone to及have/has been away的意思,区别及用法 having been done 与 have been done 的区别和用法?求大神帮助 请问“have”与“have got”的区别用法? 英语时态用法have +动词过去式 与have been +动名词的区别 I have been thinking about与I was thinking about 都是我一直在想,用法有什么区别? 请问have+agreed与have been+agreed有什么区别,好像两种用法都能在例句里看到. there has/have been的用法 have been的意思及用法.