Not only ________ polluted but also ________ crowded.
We can't _____ one to change the habits of a lifetime in a short time.
American women were _____ the right to vote until 1920 after many years of hard struggle.
There are three basic ways of _____ language to writing, and all known graphic systems use one or a combination of these.
I hope my teacher will take my recent illness into _____ when judging my examination.
Your essay is quite good: just _____ it _____ with a few illustrations and quotations.