A. for sale B. for purchase

C. for sail D. on sale

248. Many firms give away free ____ of their products， so that people can try them before buying.

A. examples B. samples C. specimens D. representatives

249. Do you ____ the entry requirements for that college?

A. delight B. content C. satisfy D. encounter

250. The manager of the company was the one who had the final ____.

A. tell B. talk C. speech D. say