The new treatments ____by Norman Bethune helped a number of soldiers .
----_______ do you have out with your friends?----Once a week.
The accident took place ______ a cold February evening.
Don’t eat ________meat.If you do so, you’ll get ______ fat.
----Must I finish that work today?----No, you _____. You may finish it in three days.
Wait a moment, I have _______ to tell you.