Houghton Mifflin Harcourt
Houghton Mifflin Harcourt: Cliffs Notes: Quiz: Collective Nouns
Take this six-question quiz to test your knowledge of collective nouns and the verbs they agree with. Once answers are submitted, correct and incorrect answers are shown and a percentage score is given.
Khan Academy
Khan Academy: Subject Verb Agreement: Quick Guide
This article focuses on subject-verb agreement with an explanation, tips to help to determine the correct subject-verb agreement, and a practice exercise with explanation.