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Liu Tao: Good morning, Yang Ling. Look! I have some toy cars. 
Yang Ling: Wow! They're so nice. How many toy cars do you have? 
Liu Tao: You can count. 
Yang Ling: OK. One, two, three, ... Twelve toy cars. 
Liu Tao: Yes. Do you have any toy cars, Yang Ling? 
Yang Ling: No, I don't. 
Liu Tao: What do you have? 
Yang Ling: I have some dolls. 
Liu Tao: How many dolls do you have? 
Yang Ling: I have fifteen. 
Liu Tao: Great! Let's play with my toy cars now. Yang Ling: OK.