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二年级(下)单元测试 M4 Name: Class: 选择填空,将序号写在括号内。( )--What is he doing? -- A. I am reading a book. B. He is listening to music.( )--What are you doing? -- A. Yes, I am. B. I am playing five-stones.( )--Are you eating? -- A. No, I am not.&..