Part B Directions: You will hear four dialogues or monologues. Before listening to each one, you will have 5 seconds to read each of the questions which accompany it. While listening, answer each question by choosing A, B, C or D. After listening, you will have 10 seconds to check your answer to each question. You will hear each piece ONLY ONCE. 听力原文：M: Excuse me. Have you been waiting long? W: About ten minutes. M: Did you notice whether No. 7 bus has gone by? W: Not while I've been standing here. I'm waiting for the number seven myself. M: Good. Hot today, isn't it? W: Yes, it is. I wish that it would rain and cool off. M: Me, too. This is unusual for March. I don't remember it ever being so hot and dry in March before. W: You're from Florida then. M: Not really. I was horn in New York, but I've lived here for ten years now. W: My mother and I have just moved here from Indiana. M: Pretty cold in Indiana, isn't it? W: Yes. That's why we moved. But we didn't know that it would be so hot here. We should have gone to California. Do you think that we've missed the bus? M: No, it's always a little late. W: I have twenty to one, but my watch is a little fast. M: Don't worry. It never comes exactly on the half-hour like it should. According to the conversation, what kind of weather is usual for March?