Fast review mode: answers are shown by default so you can skim quickly. Hide them if you want to self-test.
Modal auxiliaries include helping verbs. In 4th grade, these verbs include can, may, must and might. Each helping verb means something different in regard to the extent to which something is done.
Join 4M+ learners. Unlock unlimited quizzes, wrong-answer tracking, flashcards + reminders, study guides, and 1-on-1 challenges.