1. We couldn’t sleep last night ______ the noise next door. A. although B. since C. because D. because of 2. I did it _______ they asked me to. A. so B. because C. because of D. the reason 3. Daisy was late ______ her car was broken down. A. because B. because of C. if D. whether 4. _____ he can’t afford a car, he goes to work by bicycle. A. Because B. As C. Since D. All are correct. 5. They were sacked _____ their carelessness. A. because B. because of C. although D. despite 6. The boy was punished _____ they went to school late. A. because B. because of C. so D. although 7. “Peter was late for work because of the rain” means “_____” A. The rain made Peter go to work late. B. The rain prevented Peter from going to work early. B. A and B are correct. D. A and B are incorrect 8. The mother got angry because _______ A. her son’s bad behaviour B. her son will behave badly. C. her son behaved badly D. her son bad behaving 9. He lost his job _____ his lazyness. A. because B. because of C. if D. although 10. We couldn’t go out because the weather was so bad. A. The weather was so bad but we went out. B. If the weather were fine, we couldn’t go out. C. Whatever weather we had, we couldn’t go out. D. We couldn’t go out because of the bad weather.