You’dbetter_______yourcigarette when you are in the wood.

Little children are always _______ their fathers, but not _______ their mothers. [ ]

My brother is studying in ______ university in America; he wants to be ______ astronaut in the future.

________, I believe, and you will find Tom is very outgoing.

_________ did you do with old books?— I sent them to children in poor areas.