Subject-Verb Agreement
Both of the dogs ( bark / barks ) at night.
bark
All of the students submitted ( his or her / their ) papers on time.
their
Remove the redundant word:
"Please repeat the directions again."
again
The box of ornaments ( is / are ) in the attic.
is
Neither of the girls found ( her / their ) box of ornaments in the attic.
her
The two twins met up at midnight in the park.
two