_____ deep down in the earth, the dead forests rotted away and became coal.
#97260
A
Buried  
B
Burying 
C
To bury  
D
Being buried
推荐题目
He didn’t seem to mind_____________ TV while he was trying to study
#98650
A
them to watch
B
that they watch
C
their watching
D
watching
The man _______ over there was injured in a car accident yesterday.
#95380
A
operate on
B
being operated on
C
to operate on
D
being operated