英语(猜谜语）
猜谜语.
1.What kind of dog doesn't bite or bark?
It's( )
2.What a room has no walls,no doors,no windows,and no floors?
It's( )
3.What has hands but no feet,a race but no eyes tells but not talk?
It's( )
4.What is black when it is clean and white when it is dirty?
It's( )