Grammatically Correct: The writer's essential guide to punctuation ...

GRAMMATICALLY CORRECT
Misunderstandings of either type lead to errors in subject-verb
agreement; sometimes because the subject is wrong, sometimes
because the verb is wrong.
Exercise
Correct the following sentences:
The kudos for this extraordinary film go to the scriptwriter.
The main criteria for admission is an excellent grade point average.
The media of television is a powerful means of influencing people.
Rickets are best prevented by adequate vitamin D and exposure to
sunlight.
We won't know the outcome until our data has been fully analyzed.
The phenomena of shooting stars has fascinated people throughout
history.
Graffiti was scrawled all over the walls.
Dominoes are an easy game to learn.
At the border crossing, customs usually process us quickly.
The mathematics of the problem haven't been worked out yet.
Answers
The kudos for this extraordinary film goes to the scriptwriter.
Kudos, of Greek origin, is a singular noun meaning praise or credit.
There is no such thing as an individual "kudo." (Another caution
about this word: More than one slightly confused writer has offered
kudus to recipients who might not be all that grateful to be presented
with large African antelopes.)
The main criterion for admission~ an excellent grade point average.
A commonly misused plural. One criterion is; multiple criteria are.
The medium of television ~ a powerful means of influencing people.
Another commonly misused plural. One medium is; multiple media
are. The plural form is properly used when referring to some combination
of television, radio, newspapers, magazines, etc., or to the
people who work for such entities, as in The media were swarming
around the hotel. (Note though that multimedia would be treated
as singular, because it refers to a field rather than to the components
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