—It's dangerous to take photos of lightning.—The challenge is not for ________, but I think it's worth attempting.
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.
In order to _____ the rising production costs, the subscription rates have been increased.