Another word that is very often tested in sentence completion exercises is AS, because it is used in many different types of word groupings:
It can be used to show comparison:
He is as big as his brother.
It can be used to show that something is already known:
As you know, I won't be available tomorrow.
It can be used to explain how something is done:
I cooked the meat as you asked me to.
It can be used to explain how something appears:
She looks as if she is ill.
Other common structures are:
These people are known as the players.
As well as:
I invited Joe as well as his cousin.
He used the knife as a screwdriver.
My father is remembered as being very strict.
as often as:
I don't see my family as often as I would like.
as hard as:
This exercise is not as hard as I expected it to be.
as early as:
I can't come as early as that.
I need new things to do, such as yoga.
as he was falling:
He threw the ball just as he was falling.
as you won't talk:
He is leaving as you won't talk to him.
do as the Romans do:
When in Rome do as the Romans do.
I can't pay as much as that.
as long as:
I won't help as long as you smoke.
It's not as if you didn't know I would be here.
I feel as though I have met you before.
the same as:
Is this food the same as the food your sister makes.
as soon as:
I'll call you as soon as I finish.