Past Simple vs. Past Continuous, Present Perfect, and Future forms. Modals: Ability, obligation, probability, and certainty.

Features questions and answers with the verb "to be" (e.g., Are you hungry? Yes, I am ). Other Resource Keys

Includes present simple verb forms (e.g., studies, get up, watches ) and frequency adverbs like sometimes, never, and always .

Provides answers for "Test Yourself" sections covering growing-up vocabulary, being corrected, and phrasal verbs like handed in or blew off .

Answers include plural nouns like "potatoes," "buses," and "children".

Unit 2 Grammar Practice Exercises | PDF | Chess Openings - Scribd

Contains a comprehensive answer key for units 1–30, covering PET exam-specific topics like relative clauses and reported speech.