With more forests being destroyed, huge
问题:
With more forests being destroyed, huge quantities of good earth ___________ each year.
A.is washing away
B.is being washed away
C.are washing away
D.are being washed away
With more forests being destroyed, huge quantities of good earth ___________ each year.
A.is washing away
B.is being washed away
C.are washing away
D.are being washed away