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题目内容
（国家开放大学英语语法）
_______ a mobile phone can you ring _______ you want to talk with anywhere .
A. Using; whoever
B. Only on; whomever
C. By; whomever
D. With; whoever
A. Using; whoever
B. Only on; whomever
C. By; whomever
D. With; whoever
参考答案