单项选择题
A. It is highly competitive. B. It is a proof of one’s endurance. C. It is an understanding of oneself. D. It is a contact with nature.
A. A course certificate. B. A program schedule. C. A form to apply for a visa. D. A form to apply for a scholarship.
A. Internet communications. B. Classroom interactions. C. Cyber bullying. D. Instant messaging.