thePresentPerfectTense现在完成时助动词have(has)+过去分词donepastnowYesterday,wecleanedtheclassroom.Now,theclassroomiscleanbecausewehavecleanedit.用法1强调过去发生的动作对现在产生的结果或影响1.Myfatherboughtmanybooksformeyesterday.Now,Ihavealottoreadbecause__________...

时间:2024-11-17 14:13栏目:幼儿/小学教育