Are you still at . . . university?

He opened the door and let himself in quietly __ not to wake the family.

Neptune is an extremely cold planet, and __

As soon as he .............. the book, he informed the publisher.

ASTRONAUTS : SPACE :: ARGONAUTS : ?

You have to be rich to send your child to a private school because the fees are __

The television programs we allow __ to watch influence their learning.

At last I ........... for my efforts.

Mike: That can __ walking very difficult.

At the rate you are going, you.....fall of the bike.