9．I really love the music because itsoundsbeautiful．——青夏教育精英家教网——

9．I really love the music because itsounds（听起来）beautiful．

8．Mr．Green is a learned person，and he has lots ofknowledge （知识）．

7．The supermarket isacross（在对面）from the library．

reason，fall，find，important，few

How long do you sleep every day？Teenagers have been sleeping increasingly less in the US over the past 20 years，says recent research．Good sleep is（92）importantfor teenagers‟health and they usually need 8-10 hours of sleep every night．One possible（93）reasonfor teenagers‟lack of sleep is that they have more screen time．A study in Norway（挪威） involving 10，000 teenagers（94）foundthat those with screen time of more than 4 hours a day were more likely to sleep（95）fewer than 5 hours．And those who used an electronic device （电子设备） before bedtime often took more than an hour to （96）fallsleep．

5．---Listen!Helen is singing in the next room．It ______ be Helen．She has gone to Beijing．（　　）

4．So far the exchange program has brought many foreigners to China ．（　　）

3．-Must I pay for the bill now，boss？
-No，you ．You pay for it after the meal．（　　）

2． you do your homework，________ mistakes you will make．（　　）

	A．	The more careful，the fewer		B．	The more carefully，the fewer
	C．	The more carefully，the less		D．	The more careful，the less

1．Do you think it necessaryto set off fireworks（燃放烟花） in festivals？

20．Anything that is not safe isn'tallowed（允许） to appear on the market．

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