PRE-UNIT: Getting to KnowYou CHALLENGE 1 Information Questions with Be CHALLENGE 2 Information Questions with Do CHALLENGE 3 Editing UNIT 1: Balancing Your Life CHALLENGE 1 Using Used to in Affirmative and Negative Statements CHALLENGE 2 Used to in Yes/No with Wh- Questions CHALLENGE 3 GivingAdvice: Could, Should, How about Why don't you . . . ? CHALLENGE 4 Adjective Clauses CHALLENGE 5 Modals and Related Expressions for Suggestions, Advice, and Necessity EXTENSION CHALLENGE 1: Used to vs. Be used to EXTENSION CHALLENGE 2: Omission of the Relative Pronoun in Adjective Clauses UNIT 2: Personal Finance CHALLENGE 1 Howmuch CHALLENGE 2 Contrary-to-Fact Conditionals: Statements CHALLENGE 3 Contrary-to-Fact Conditionals: Yes/No Questions CHALLENGE 4 Passive Voice: Present CHALLENGE 5 Contrary-to-Fact Conditionals: Wh- Questions EXTENSION CHALLENGE 1: Future Conditional EXTENSION CHALLENGE 2: Wishes for Desired Change UNIT 3: Buying a Home CHALLENGE 1 Comparative and Superlative Adjectives CHALLENGE 2 Comparative and Superlative Questions CHALLENGE 3 Yes/No and Information Questions CHALLENGE 4 Irregular Comparative and Superlative Adjectives CHALLENGE 5 Should and Should have EXTENSION CHALLENGE 1: Compound Adjectives EXTENSION CHALLENGE 2: As many.., as, As much.., as UNIT 4: Community CHALLENGE 1 Embedded Questions: Wh-Questions CHALLENGE 2 Embedded Questions: Yes~No Questions CHALLENGE 3 Making Suggestions CHALLENGE 4 Indirect Questions CHALLENGE 5 Can, Could, and Should EXTENSION CHALLENGE 1: Embedded Questions in Statements EXTENSION CHALLENGE 2: Embedded Questions with Infinitive Phrases UNIT 5: Health CHALLENGE 1 Present Perfect CHALLENGE 2 Present Perfect Continuous Statements CHALLENGE 3 Indirect Speech CHALLENGE 4 Indirect Speech: Modals CHALLENGE 5 Present Perfect Continuous Questions EXTENSION CHALLENGE 1: Present Perfect vs. Present Perfect Continuous EXTENSION CHALLENGE 2: Indirect Speech: Sequence of Tenses UNIT 6: Getting Hired CHALLENGE 1 Restrictive Adjective Clauses CHALLENGE 2 Generalizations CHALLENGE 3 Past Perfect Tense: Forms CHALLENGE 4 Past Perfect Tense: Uses CHALLENGE 5 Past Perfect Tense with Simple Past EXTENSION CHALLENGE !: Non-RestrictiveAdjective Clauses EXTENSION CHALLENGE 2: Restrictive vs. Non-Restrictive Adjective Clauses UNIT 7: On the Job CHALLENGE 1 Tag Questions CHALLENGE 2 Passive Voice: Form CHALLENGE 3 Passive Voice: Overview of Tenses CHALLENGE 4 Active to Passive Voice CHALLENGE 5 Verbs with Two Objects EXTENSION CHALLENGE 1: Two-Word Phrasal Verbs EXTENSION CHALLENGE 2: Tag Questions with Indefinite Compound Pronouns and Negative Words
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