—Look! The lake is clean. I never throw litter into it.
—If everyone does this, it would be ________.
dirtier
the dirtiest
cleaner
the cleanest
He can’t play soccer__________, __________ he practices it every day.
We have _________ homework today. We don’t have any time to watch TV.
The teacher is very angry ___________ these students.
_________ milk every day. It’s not good for you ________ much coffee.
The doctor told me, “Don’t forget ________ the medicine after dinner.”