独立主格改写,1 we heard that she was singing in the next room.2 I

独立主格改写,
1 we heard that she was singing in the next room.
2 I felt that my heart was beating very fast.
3 if I am given more time,I can do it better.
4 He won’t come to the party unless he is invited.
5 He knew New York very well although he was born in Chicago.
6 as all the tickets had been sold,we went away disappointed.
7 When I was walking along the road,an accident happened.
8 He watched the screen and his mouth was wide open.