Grammar Focus II #VIT, : have / has + Vpp 表達從過去發生,持續到現在的事。 Vp-p. been Voip h : am/is/are vp.p. : was, were Vpp will be 熊 Unit1-3 3t have / has been vp.p. ²2 h had S + be + Upp (+ by...) S +aux + be + Upp (+by...) 課文節錄 LL3 eting was canceled by our boss. k was robbed by a group of gangsters. s spoken all over the world. world is round is widely believed.