单项选择题

Passage One Questions 26 to 30 are based on the passage you have just heard.

A．Cheek your website ranking.
B．Determine if Adsense is cost effective for you.
C．Read the Terms of Service.
D．Find out ff it is cost free.

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a peaceful development→peaceful development

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use→using

Passage One Questions 26 to 30 are based on the passage you have just heard. 您的浏览器不支持 audio 元素。