9.hashe
10.howlong
11.died,hasbeendead
12.hasbeenopen
13.hasbeenout
14.Ithasbeen,since
15.Ithasbeentenminutessincethebusarrivedhere.
或Thebushasbeenherefortenminutes.
或Thebushasbeenheresincetenminutesago.
1.hasbeenasleep
2.hasbeenopen
3.hasbeenon
4.hashad
5.hasbeendead