来自孙志永的问题
DidyounoticeMary___toherbedroom?a.cameinandranb.comeinandrunc.cominginandrunningd.havingcomeinandrunwhy?
DidyounoticeMary___toherbedroom?
a.cameinandran
b.comeinandrun
c.cominginandrunning
d.havingcomeinandrun
why?

