There are___trees in the garden. But there aren’t___flowers there.

What do you think of the book —-Oh excellent. It’s worth _________ a second time.

The rich man ________ much food_________ the poor families during the hard time.

his old age,we didn’t invite him to climb the mountains with us. [ ]

It’s not necessary to explain the truth________ there are air, water and sunlight , there are living things.