they have been here ___ two hours ago.A.for B.since C.before

they have been here ___ two hours ago.A.for B.since C.before they have been away from here since two years ago同义句 ___ ___ 1.We () here two hours ago.We () here for tow hours A.have a at the school gate,they,have waited,since two hours ago,for since,they,been,from,ago,two,here,away,have连词成句 They arrived here . A．since a week ago B．a week ago C．for a I have studied here （ ）many years ago. A. since B. for C, be 1.They have been here since 2000.___ ___ 英语 2.I have _____ here for two years.A.got B.been C.arrived Uncle Wang ____ here two hours ago.A.came to B.went C.got D. We came here tow hours ago.(改为同义句)We ___ ___ ___ for two hou My aunt has been a teacher ____ten years ago.A.for B.since C