29. classify 分类　 The books in the library are classified according to subject. 按科目分类

28. claim to do　　 claim that　 宣称　 claim sth 认领…　

27. civil rights 公民权力　　 civil duties 公民义务

26. in/under no circumstances = on no account = in no case　 决不=in no way=by no means

Under no circumstances should you lend him any money. in reduced circumstances 艰苦环境下　　

25. circle the correct answer 圈出　 The moon circles the earth围绕　

a business circle商业圈

24. choose her as /to be sth　 choose from 从中挑选　 choose = pick out

23. a large/wide choice of选择have the first choice优先选择have no choice but to do别无选择

22. pay by cheque 用支票付款　　 cash this cheque　 对换支票　 a blank cheque 空白支票

21. check in 登记；检票　　 check out 结帐离开　　 check up 核对

20. cheat in the exam 考试作弊　　　 cheat oneself 自欺欺人