________ camera is not as expensive as ________, but it works well, too．A.Mine; hisB.Mine; himC.My; heD.My; his
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D解析第一空后有名词camera，所以要用形容词性的物主代词，首先排除选项A和B；后面一空前有介词as后面要用代词、名词或相当于名词的短语，所以这里用名词性的物主代词；he用于表示人，him是它的宾格形式；his是它对应的形容词性物主代词；mine是I对应的名词性物主代词．