In order to improve English listening .A. he bought a WalkmanB. his father bought him a

问题补充：

In order to improve English listening, .

A. he bought a Walkman

B. his father bought him a Walkman

C. a Walkman was bought by him

D. a Walkman was offered to him

答案：

(答案→)A. he bought a Walkman

B. his father bought him a Walkman

C. a Walkman was bought by him

D. a Walkman was offered to him

解析：考查非谓语动词。improve English listening的逻辑主语和后面句子的主语必须一致。