leave present perfect tense 在 Present Perfect Tense - English grammar tutorial video lesson 的評價 ... <看更多>
leave present perfect tense 在 just(recently) + present perfect or simple past - English ... 的評價 Would the following examples be correct way to distinguish the two tenses? John just left the room. He will be back in two hours. John has just left the room, ... ... <看更多>