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68. The purpose of the advertisement is ________.
A. to help parents with their daily life    
B. to attract more subscribers
C. to collect money for children         
D. to sell children toys and games
69. Which of the following is true?
A. Only $12 is paid for 24 issues of the magazine.
B. Readers can get a free offer any time of the year.
C. Readers from all over the world can enjoy the free offer.
D. Readers can communicate with child experts on the Internet.
70. A reader subscribed PARENTS three months ago, but now he finds the magazine dissatisfying. What can he do?
A. He can cancel and get all his money back.
B. He can cancel without getting money back.
C. He can cancel after answering some questions.
D. He can cancel at a certain time to get money back.
71. Where can we most probably read the text?
A. In a newspaper.                    B. In a website.
C. In a science book.                  D. In a magazine.