He is not such a man ________ cares for himself only.
A new study found ______ a teacher has anxiety about maths, ______ feeling can influence how his or her female students feel about math.
Good health is __________ most people take for granted--- until they lose it .
With the development of modern society, E-mail as well as telephones an important part in daily communication.
—Your brother was brave enough to tell the truth in public.---Yes, and he will never regret_________ that. I admire him so much.
This is our contribution to ________ world of the 21st century, ________ world of independence and mutual understanding.