Our school has a big library. There are about ten booksin it.

Some retired people have nothing to doThey often get together and ___for hours talking about their past experiences

The boy was named _______ the hero who gave his life for saving him in the earthquake

n’t go out in this weather,” saidBob,_______out of the window.

There is ___ food in the fridge(冰箱). Let’s buy some.