Listen and choose. 听录音，选出你听到的句子。
(     )1.A. It is a pig.  
(     )2.A. I have a dog.  
(     )3.A. Can a cow fly?
(     )4.A. WaIk forward.  		 B. It is big.        
B. I have a pig.    
B. Can a fish Swim?                                                                    
B. Walk backward.    
1. A    2. A    3. B    4. B
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