Unit 1 Using Be in Sentences Unit 2 Using Have in Sentences Unit 3 Writing with the Simple Present Unit 4 Writing with the Present Progressive Unit 5 Writing with the Simple Past Unit 6 Writing with the Past Progressive Unit 7 Writing about the Future Unit 8 Writing with Subject-Verb Agreement Unit 9 Writing with Prepositions and Prepositional Phrases Unit 10 Writing with Modals Unit 11 Using Simple Sentences Unit 12 Using Compound Sentences Unit 13 Writing with Adjective Unit 14 Writing with Articles Unit 15 Writing with Adverbs