1. ---I like your new shoes! ---Thanks. I had to try on almost a dozen pair ____ I decided to get them. A. as B. when C. after D. before 2. Don’t give up regardless of difficulty a
nd failure, ____ you’ll never achieve your goals. A. and B. but C. or D. so 3. They hurried to the train station, ____ it was too late. They had to wait another ten minutes. A. but B. so C. and D. or 4. ____ the news, so far, has been good, there may be bad days ahead. A. When B. While C. If D. As 5. ____ children believe they can succeed, they will never become totally independent. A. If B. Though C. Unless D. When 6. The medicine works more effectively ____ you drink some hot water after taking it. A. as B. until C. although D. if 7. It was a long time ____ the miners in Chile were rescued from under the mine. A. until B. when C. before D. since 8. It just isn’t fair, ____ I was working as a waiter last month, my friends were lying on the beach. A. whenever B. though C. for D. while 9. ____ he sells computers for a living, Bruce says that he doesn’t know much how they work. A. Now that B. While C. As D. Until 10. ____ she had time to realize what was happening, she was hit on the head. A. Since B. Before C. When D. Until 11. According to pension reform(退休制度改革) in some European nations, by 2028 Irish workers will have to wait ____ they are 68 to retire. A. if B. since C. while D. until th 12. January 8 saw events taking place in the US city of Memphis to mark ____ would have been Elvis Presley’s 75th birthday. A. what B. which C. that D. where 13. We knew we were getting close to the park ____ we started seeing the tiger right next to the road. A. until B. unless C. while D. when 14. The Parkers bought a new house but ____ will need a lot of work before they can move in. A. they B. it C. one D. which 15. ---Some Chinese students find it difficult to understand native speakers when in London. ---Exactly, ____ they’ve learned a lot about grammar and known many words. A. if only B. now that C. as if D. even if 16. ____ our national football team lost the game to a weak team as Syria by 2 to 3, I held no doubt about the new coach’s ability. A. Until B. By the time C. Unless D. After 17. When Edison invented the light bulb, he tried over 2,000 experiments ____ he got it to work. A. as B. after C. when D. before 18. John knocked at the door for nearly five minutes ____ his wife opened it. A. when B. before C. until D. while 19. Skipping breakfast can also cause you to overeat, ____ your body is in a slow state, it won’t be able to burn the extra calories very efficiently.
A. Unless B. Though C. Since D. Before 20. I thought we’d be late for the concert, ____ we ended up getting there ahead of time. A. but B. or C. so D. for
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