The average temperature this year is _______ that of last year.

Of all your coats, why do you like this one best?—Because it’s _________ than the others.

I know the young man in green jacket ____brother is my good friend.

They often leave the boy alone at home. They think that he’s old enough to look after _____.

In our school library, there____ a number of books on science and the number of them ______ growing larger and larger.