1. It's later than I thought. I must go now. 2. Jake left before the end of the concert. He had to go home early. 3. In Britain many children must wear uniform when they go to school. 4. When you come to Los Angeles again, you must come and see us. 5. Last night the grandfather became ill suddenly. We had to call an ambulance. 6. You really must work harder if you want to pass the examination. 7. I'm afraid I can't come tomorrow. I will have to work late. 8. I'm sorry I couldn't come yesterday. I had to work late. 9. Paul doesn't like his new job. Sometimes he has to work at weekends. 11.We couldn't repair the car ourselves. We have to take it to a garage.
2. The house decorated with lights looked beautiful. 3. Finding the door open, I went inside. 4. Having worked for several hours, we came out of the office. 5. Walking along the road, I saw a crowd of people. 6. Being very busy, he had to refuse our invitation. 7. Entering the room suddenly, she found them playing computer games. 8. Having lost all his money, he asked his friend for help. 9. having heard the story before, they didn't want to listen to it again. 10. Turning the light on, we were surprised at what we saw. 11. Knewing that he was hungry, I offered him some food. 12. Having looked through the fashion magazine, I realized that my clothes were out of date.
