Unit 4.0 Family – Answer Pack Lesson 4.0 Introduction Lesson 4.1 Wh- Questions Lesson 4.2 Yes / No Questions Lesson 4.3 Pronouns Lesson 4.4 Describing People Lesson 4.5 Present Perfect and Present Perfect Continuous Lesson 4.6 Auxiliary Verbs Lesson 4.7 Punctuation Marks