I. Listen to the recording and answer the following questions. 1. Why is London famous for its fog? A. The air is polluted. B. It is not far from the sea. C. There is plenty of rain. D. It is cold all the year round. 2. What happened to the buses and cars in the heavy fog on December 4, 1952? A. There weren’t any people in the buses and cars. B. There was only a driver in the buses and cars. C. The buses and cars were full of people. D. The buses and cars were moving quickly. 3. What is this passage about? A. The cause of the fog. B. Fogs lead to death. C. The good things about fogs. D. The bad effect of fogs.