单项选择题
A.listen to B.listening C.listen D.listening to
It's not safe（）in the street.A.playedB.playC.playingD.p...
单项选择题It's not safe（）in the street.
A.played B.play C.playing D.plays
It's very convenient（）hereA.to liveB.liveC.livedD.livin...
单项选择题It's very convenient（）here
A.to live B.live C.lived D.living
It was convenient（）close to work.A.to livingB.livingC.l...
单项选择题It was convenient（）close to work.
A.to living B.living C.live D.lived
