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听力题目：
3. (A). The books won’t cost anything.
(B). There won’t be any writing.
(C). There won’t be more than three students.
(D). Three books are required.
4. (A). Pam is taking a test.
(B). Pam asked the man many questions.
(C). Pam is seeing the doctor about her foot.
(D). Pam is a doctor who examines feet.
