1. I am taking five courses this semester. 2. Bill is trying to improve his English. 3. Sue is writing another book this year. 4. John and Mary are talking on the phone. 5. I need an umbrella because it is raining. 6. We were walking down the street when it began to rain. 7. It was beautiful yesterday when we went out for a walk, it was not raining, the sun was shining. 8. I couldn't get you on the phone last night, who were you talking to so long? 9. What will you be doing at 6 tomorrow? 10. We will be playing chess in half an hour. 11. She will be listening to her favourite music at 8 o'clock tomorrow. 12. What will you be doing when I come?
