12. Uncle Wang arrived____ No. 14 Middle School halfan hour ago. A: at B: in C: to D: /
12. Uncle Wang arrived____ No. 14 Middle School halfan hour ago. A: at B: in C: to D: /
                    
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            12. Uncle Wang arrived____ No. 14 Middle School halfan hour ago. A: at B: in C: to D: /