15．Amy often stays up late at night to learn English．    
16．The programmes Amy listens to are Canadian and American．    
17．Amy thinks that talk channels are better than music channels．    
18．Amy's progress is slow，but her English is getting better than before．    
19．Tom isn't interested when Amy tells him about listening online．    
20．Tom and Amy are talking about a good way to learn English．    ．

【考点】长对话理解

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