单项选择题
A. The fashion of women’s shoes. B. The fashion of women’s dresses. C. The fashion of shoes heels. D. The fashion of women’s boots.
A. It is easy for a teacher to intervene. B. It is difficult to detect. C. It is impossible to monitor. D. It occurs without your knowledge.
A. E-mail messages. B. Cell phone messages. C. Postings on websites. D. Online diaries.