听音，选择你听到的句子。
(     ) 1. A. I am cold.  
(     ) 2. A. I am a boy. 
(     ) 3. A. How are you?
(     ) 4. A. I am fine.   		B. I am hot.         
B. I am a teacher.   
B. How are you today?                                                                                
B. I am happy.       
1-4  B  A  A  B
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