3. As I don't have a credit card, I found it difficult to book an airline ticket over the phone. ____________________________________________________________ 4. Keith spent a lot of time filling in job application forms because he was unemployed. ____________________________________________________________ 5. Because I was walking quickly, I soon caught up with her. ____________________________________________________________ 6. The house was built of wood, so it was clearly a fire risk. ____________________________________________________________ 7. I was eager to catch the bus in good time because I had been told off the day before for arriving late.