D. ADVERBIAL CLAUSE OF REASON I/ Choose the best answer among A, B, C or D to complete each sentence. 1. he is tired, he can’t work longer. A. Because B. Even though C. Although D. Besides 2. it was so cold, he went out without an overcoat. A. If B. Since C. Although D. Because 3. it was late, we decided to take a taxi home. A. Because B. Since C. Because of D. Although 4. you subtract 7 from 12, you will have 5. A. Because B. If C. Though D. As 5. We couldn’t reach the house the road was flooded. A. because B. because of C. if D. though 6. he has a headache, he has to take an aspirin. A. Because B. Because of C. Although D. In spite of 7. The flight had to be delayed the bad weather. A. because B. Because of C. despite D. when 8. he comes to the theater with me, I shall go alone. A. Because of B. Because C. Unless D. When 9. Take a map with you you lose your way. A. so B. because C. although D. in case 10. rain or snow, there are always more than fifty thousand fans at the football games. A. Even though B. Because C. Despite D. Because of 11. his illness, he had to cancel the appointment. A. However B. Despite C. If D. Because of 12. Minh had a terrible headache. , he went to school. A. However B. But C. Although D. Because 13. Tom has a bike, he always walks to school. A. but B. because of C. because D. despite 14. My sister will take the plane she dislikes flying. A. because B. so that C. although D. before 15. We decided to leave the party early it was boring. A. due to B. because C. but D. and 16. The students arrived late the traffic jam. A. because B. owing to C. despite D. so 17. he missed the first bus, he came ten minutes late. A. Since B. Although C. However D. Therefore 18. his physical handicap, he has become a successful businessman. A. In spite of B. Because of C. If D. Although 19. It was difficult to deliver the letter the sender had written the wrong address on the envelope. A. though B. but C. so D. because