猜几句英文谜语
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 face but no eyes tells but no talk?
It`s（ ）
4 What is black when it is clean and white when it is dirty?
It`s（ ）