a bad habit is formed, it will take a long time to get rid of it.
The _____ in temperature is broadcast twice a day in the channel.
Such a good opportunity, once ______, might never come again.
_________ you may have, you should gather your courage to face the challenge.
Faced with difficulties, you should believe your confidence is _______ makes a difference.
Reality is not the way you wish things to be,______ the way they actually are.