Scientists are convinced the positive effect of laughter_____physical and mental health.
The fridge is _____for one year. It means that the company that makes it promises to repair or replace it if it breaks within a year.
The number of tickets _____ will be determined by the size of the stadium.
—You could always put the decision off a little bit longer.—_____ If I leave it much longer I might miss my chance.
To learn to swim well, ___________.
The next thing he saw was smoke ______ from behind the house.