1. 听材料,回答问题。
(1) How does the man feel about David's way of sleeping? A. It's effective. B. It's strange. C. It's the best.
(2) How many hours does David sleep a day? A. Four. B. Six. C. Seven.
(3) What does the woman suggest at the end of the talk? A. People should develop a habit like David's. B. People need longer hours of sleep. C. People have different sleeping habits.
【考点】
长对话;
【答案】

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