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                题目内容
                (国家开放大学英语语法)
            
            
                Let.s look at the bag. Can you see _____“s”on the corner of_____ bag?
A.a, a?????
B.a, the??
C.an, a??
D.an, the
                    
                    
                    
                
                
                
            
        A.a, a?????
B.a, the??
C.an, a??
D.an, the
参考答案