单项选择题
Conversation Two
A. Show the add/drop form to Professor Smith. B. Go on attending Professor Smith’s class. C. Come to the registration office with the form. D. Sort out the problem all by herself.
A. The disadvantages of solar energy. B. The pollution of other energy sources. C. The rising fuel costs and fuel shortage. D. The costs of solar energy system.
A. Local and international news. B. A menu of political stories. C. The most important news. D. What you are interested in.