The CDs are on sale！Buy one and you get ______completely free.

busy homework ,the children also have to take arts, music and sports classes in their free time.— I wonder what they will become

The number of the cranes is getting ______.If we don’t help them, they will disappear ________a few years.

Is it OK that I sit here?— Come a little______to meI have something important to tell you[ ]

There’s no ticker left for Lang Lang’s piano concert . you your sister can go to it .