Unit 1 We are still in close contact with eachother. Unit 2 I want to play tennis on Sunday. Unit 3 This term I joined a debating club. Unit 4 I should start a healthy lifestyle now! Unit 5 You can talk but don' t talk with your mouthfull. Unit 6 The traffic is crowded during rush hour. Unit 7 I prefer pop music to classical music. Unit 8 Fortunately it doesn't cause a bigdisaster. Unit 9 You always have a clear target. Unit I0 I' m writing a letter to my friend. Keys to Exercises