–Mr. Smith is no longer ________he used to be. --So he is. Success and wealth have _________ his character.
Doctors say _____ good diet is of ______ great benefit to our health.
Mike is a student at a famous university, _______ for a doctor degree.
There is a feeling in me _______ we’ll surely find a cure for Aids.
__________,we must believe in ourselves and believe that we can do something well.
In 1800s, a group of adventurers(探险家) ______ on their exploring trip. Five days later, they came to what is now known as Quebec.