21.   No company had yet lost government business for failure to comply, but the law was on the books.

22.   Officials at the bank were found to have cooked the books.

23.   One solution would be to make the cities more habitable, but a much more sure-fire way is cooking the books.

24.   She put the books down on the vanity table and with trembling fingers opened her handbag to find her face powder.

25.   She tidied up the books and put them in neat piles.

26.   Sometimes teachers I know draw little pencil lines here and there in the books.

27.   The approach is cognitive and the books offer a combination of explanations, examples, and a variety of imaginative exercises.

28.   The books are arranged alphabetically, according to author.

29.   The books are designed to be both entertaining and instructive.

30.   The books are listed alphabetically, according to the name of the author.