＊ haven't +pp 還沒發生…. I haven't made any decision. 我還沒有做任何決定。 I haven't made any decision yet. 可以加上yet，強調 ”到目前”我...
I ( ) from him since last year. haven't heard跟haven't been heard 套進去然後有什麼差別...
Haven't your parents gone to Panama? Yes,my parents have gone to panama. 嗯!!應該是這樣吧!! 我有點不確定!!