Quizzes

Practice using relative clauses in English grammar, including defining and non-defining clauses, and relative pronouns (who, which, that, whose, whom)

object of the preposition

grammar (homophones: there, their, and they’re)

TOEFL grammar & vocabulary quiz

rules of contractions

comparative and superlative adjectives

grammar & vocabulary competition

Learn how to correctly use apostrophes in contractions and to show possession. Covers proper apostrophe placement in various grammatical contexts.

Test your knowledge of when to use capital letters, including proper nouns, sentence beginnings, titles, and special uses.

world after 1945