1. ….……. it rained heavily, they went to school on time. A. Even though B. Despite C. Though D. A and C are correct 2. Our visit to New York was delayed …….... my friend's illness. A. because B. despite C. thanks to D. though 3. ……..… he comes to theater with me, I shall go alone. A. Because of B. Unless C. Because D. When 4. Trees won't grow ………... there is enough water. A. if B. when C. unless D. as 5. The flight had to be delayed ……….. the bad weather. A. because B. due to C. because of D. B and C are correct 6. ………. she's busy, she still helps you. A. Although B. Because C. Since D. In spite of 7. I haven't seen Long ............... he gave me this book. A. since B. because C. until D. before 8. ……….. it is getting dark, she still waits for him. A. Unless B. Since C. while D. although 9. ……….. he has a headache, he has to take an aspirin. A. How B. Because C. Despite D. Although 10. He had left …..….. I came. A. when B. while C. since D. by the time