Natural diamonds are brought to the surface through kimberlite pipes.
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What can be inferred about this prize？
A. It was highly competitive.
B. The winner receives a trophy.
C. There were few competitors.
D. They don't think the winner deserves the prize.
What happened to the employees last year？
A. They missed all receipts.
B. Workers were behind schedule for claims.
C. They reminded the manager to fill in claims.
D. They will not miss the due date.
What does the speaker recommend？
A. Protecting oneself from the sun
B. Going on a picnic
C. Meeting some friends
D. Buying some souvenirs in the stores
听力原文：W: Poor Charlie! To be so close to finishing and then not graduate!
M: If you had known how he had dealt with his school work, you wouldn't feel like that.
Q: What can be inferred about Charlie？
(17)
A. He didn't work hard in school.
B. He took a part-time job in school.
C. He had always been serious about study.
D. He had no interest in social work.
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