Apparently a lack of sleep is causing problems for many teenagers at school. Scientists say that (17)_________ young people get at least eight hours of sleep a night, they won’t be able to concentrate well in class. Some schools have tried (18) __________ the start of the school day. One head teacher says “The later start to the day is very (19) _________ and, provided that all the parents agree, we shall make this later starting time permanent”. The students are getting nearly an hour’s (20) _________ sleep and it’s having a good effect (21) ________ their work. They’re happier and concentrating much harder. We all need (22) _________ sleep to recharge our batteries (23) __________, we feel terrible the next day. It’s impossible to persuade young people to go to bed earlier so the only alternative is to (24)_________ them get up later.
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Question 17. A. because |
B. unless |
C. if |
D. while |
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Question 18. A. delaying |
B. delays |
C. delayed |
D. delay |
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Question 19. A. successfully |
B. successful |
C. succeed |
D. success |
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Question 20. A. much |
B. less |
C. more |
D. fewer |
|
Question 21. A. in |
B. at |
C. about |
D. on |
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Question 22. A. much |
B. only |
C. enough |
D. a lot |
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Question 23. A. Otherwise |
B. Moreover |
C. Furthermore |
D. However |
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Question 24. A. have |
B. allow |
C. make |
D. let |
