Be verb-Simple Present Time
Ex. 1-Introduction
Ex. 2-Subject and Verb Agreement
Ex. 3-Negative Sentences
Ex. 4-Questions
Ex. 5-Questions
Ex. 6-Questions
Ex. 7-Questions
Ex. 8-Questions
Ex. 9-Questions
Ex. 10-Questions
Ex. 11-Questions
Ex. 12 Short Answers
Ex. 13-Information Questions