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打印参考答案：
11. D) Fred may have borrowed a sleeping bag from someone else.
12. B) It will cool down over the weekend.
听力原文：
11. W: I forgot to tell you that Fred called last night to borrow your sleeping bag.
M: Oh, I saw him at the gym this morning, but he didn’t say anything. So he must have asked somebody else.
Q: What does the man imply?
12. W: These summer days are getting to be more than I can take. It was even too hot to go to the pool yesterday.
M: Hang in there. According to the weather report we should have some relief by the end of the week.
Q: What does the man mean?
