1.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
2.Hearing the news ,he hurried out ,( )the book on the table and disappeared into the distance.
A.left ;lain open B.leaving ;lying open
C.leaving;lie opened D.left;lying open
3.At weekends in Chendu,you can often see many people ( ) outside some restaurants,( )to have dinners.
A.sit;wait B.seated;waiting
C.seating;waiting D.sitting ;wait
4.The students enterd the classroom,smiling and ( ),and( )down to have their class.
A.talked;sat B.talking;sitting
C.talking;sat D.talked;sitting