past simple & present perfect

0 8 词汇卡 ameliakostecka

问题		答案
PS when? 开始学习		past & finished actions
PP effects 开始学习		past action which has some results now
PS operator 开始学习		did, was/were
PP operator 开始学习		have, has
PS verb form 开始学习		II verb form
PP verb form 开始学习		III verb form
PS important words 开始学习		yesterday, ... ago, last ..., in 1995, on Monday, at 3 pm
PP important words 开始学习		since/for, yet, already, just, before, recently/lately, never/ever, so far, still