单项选择题
A．The woman can sign up for a swimming class. B．He works in the physical education department. C．The woman has the potential to swim like a fish. D．He would like to teach the woman how to swim.
A．Get prepared to face any new challenges. B．Try to better the current social security. C．Narrow the gap between blacks and whites. D．Improve the lives of families with problems.
A．They leave many questions unanswered concerning the Internet. B．They are optimistic about the future of the Internet revolution. C．They have explored the unknown territories of the virtual world. D．They don’t take sides in analyzing the effects of the Internet.