We have sweaters ____ all colors ____ 50 dollars each.

There is still a strong argument ________ mobile phones are a particular risk to children.

I heard that he ________ for three daysDo you know if he is better now?

The national parks are very important for the protection of these wild animals, which would ______ run the risk of becoming extinct

he old man ______ to walk back to his house, thesun ______ itself behind the mountain