11. The young man promised to his parents, “I would never ____ again.”
A. let you down B. let you out C. let you in D. let you by
12. The girl is not happy at the new school. She has friends there.
A. few B. a few C. little D. quite a few
13. Robots have already human tasks in the industrial field.
A. taken on B. taken out C. taken up D. taken over
14. He took the medicine, but it didn’t have any ______.
A. answer B. cause C. effect D. work
15. It is ______ that over one million Americans now live below the poverty line.
A. judged B. estimated C. calculated D. considered
16. He left ______ an important detail in his account.
A. off B. over C. behind D. out
17. When there are small children around, it is necessary to put bottles of pills out of ______.
A. hand B. hold C. place D. reach
18. I hadn’t seen him for years, but I ______ his voice on the telephone.
A. realized B. discovered C. recognized D. heard
19. This place, originally a small town, has been ______ into a modern city.
A. transported B. transferred C. transmitted D. transformed
20. There was nobody ______ when we came round the corner.
A. out of sight B. at sight C. by sight D. in sight