听力原文：M: I really appreciate your filling in on yesterday's lecture.W: No problem. I th
听力原文：M: I really appreciate your filling in on yesterday's lecture.
W: No problem. I thought you might want to go over it together. And, anyway, it helps me revtew.
M: I am. Thanks. So, you said she talked about squid？ Sounds a little strange ....
W: Well, actually, it was about the evolution of sea life — a continuation from last week. The octopus and the squid descended from earlier creatures with shells. They survived by shedding their shells—somewhere between 200 and 500 million years ago.
M: That's a pretty long span of time.
W: I know. That's what she said, though. To be precise: "Exactly when they emerged is uncertain...and why is still unexplained."
M: Some squid are really huge. Can you imagine something that big ifit still had a shell？
W: Actually, it's because they lost their shells that they could evolve to a bigger size.
M: Make sense. But some are really huge. I've read about fishermen that caught squid that weighed over a ton. Did she talk about how that happens？
W: Not really. But she did mention some unusual cases. In 1933 in New Zealand they caught a squid let's see here it was twenty-two yards long. Its eyes were eighteen inches across. Can you imagine？
M: Reminds me of all those stories of sea monsters.
(20)
A．Where they should move.
B．How to negotiate with the landlord.
C．How to fight the increase.
D．Whether to accept an increase in rent or move.
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