8．According to the constitution.it is compulsory for a citizen to undertake military service．——青夏教育精英家教网——

8．According to the constitution，it is compulsory for a citizen to undertake military service．

7．In a courtroom it is sometimes difficult to recognize who is innocent and who is guilty．

6．I found his phone number in the directory and tried to telephone him last night，but there was no reply．Later I found I dialed the wrong number．

5．I was embarrassed to see our team beaten by a weaker team．

4．The vice president indicated that all applicants for the post should have a master's degree．

3．（Lesson One，Unit 12）
And a word of advice．To （66）avoid（避免） getting confused about the British tipping system，you need to check your bill to see if a tip is included or not．If it isn't，I suggest （67）leaving（leave） 10% of the bill for the waiter or （68）waitress-even a bit more if the service is good．Talking of money-it's really easy to （69）exchange（兑换） traveller's cheques at banks or hotels-so I （70）advise （建议）you to get some of those before you come．

2．Charles decided to specialize in physics after graduation．

1．Her high height sets her apart from her sisters．

20．Previous research found that distraction can ease pain．

19．We mustn't give way to these unreasonable demands．

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