A、The effects of the flood. B、The heroic fight against a flood. C、The cause of the flood. D、Floods of the past twenty years. A

M: Hello, I’m a Senior student. Could you tell me whether this reference room is only for faculty members?
W: No. It’s also open to the postgraduates. And undergraduates can come too, if they’ve got professor’s written permission.
Q: Can the man study in the reference room?

M: This has been the worst flood for the past twenty years. It has caused much damage and destruction.
W: Look at the prices of foods and vegetables. No wonder they’re so expensive.
Q: What are they talking about?