求常用非延续性动词转延续性动词答:leave→been away,borrow→keep,buy→have,begin/start→be on,die→be dead,become→ be move to→live in,finish→be over,join→be in/be a member of,open sth.→keep sth. open,fall asleep --- be asleep fall ill→be ill,go/come there --- be there come/ back --- be back...