21. ________ there was no electricity, I was able to read because I had a candle. A. Unless B. Even though C. However D. as long as 22

21. ________ there was no electricity, I was able to read because I had a candle.
A. Unless B. Even though C. However D. as long as
22. A fire must have a readily available supply of oxygen. ________ it will stop burning.
A. Although B. Moreover C. Otherwise D. However
23. I studied Spanish for four years in high school. ________, I had trouble talking with people when I was traveling in Spain.
A. Therefore B. In spite of C. Moreover D. Nevertheless
24. I am afraid that the company is in deep trouble. ________, we are going to make some people redundant.
A. Therefore B. However C. Otherwise D. Nevertheless
25. I like to keep the windows open at night no matter how cold it gets. My wife, ______, prefers a warm bedroom with all windows tightly shut.
A. nevertheless B. otherwise C. unless D. moreover
26. Some fish can survive only in salt water, ___ other species can live only in fresh water.
A. whereas B. unless C. if D. since
27. ________ Jason became famous, he has ignored his old friends. He shouldn’t do that.
A. If B. Since C. Even though D. Despite
28. We’re going to lose this game ________ the team doesn’t start playing better soon.
A. if B. unless C. although D. whereas
29. Jack insisted that he didn’t need any help, ________ I helped him anyway.
A. and B. so C. besides D. but
30. Florida is famous for its tourist attractions. Its coastline offers excellent white sand beaches. ________, it has warm, sunny weather.
A. Otherwise B. Moreover C. Nevertheless D. Therefore
31. The flowers will soon start to bloom ________ winter is gone and the weather is beginning to get warmer.
A. if B. because C. so D. even though
32. ________ quickly we ran in the competition, We were the loser .
A. Despite of B. Even though C. However D. Nevertheless
33. …………… both his legs were broken, he managed to get out of the car before it exploded.
A. Because B. Although C. If D. However
34. ______ having the best qualifications among all the applicants, Justin wasn’t offered the job.
A. Although B. While C. In spite of D. Despite of
35. ________ the internet is very popular, many older people do not know how to use it.
A. However B. If C. Even though D. Despite