C. will be disappeared

D. will disappear

7. 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

8. - Are we about to have dinner?

- Yes, it _____ in the dinning room.

A. is serving

B. is being served

C. has been serving

D. serves