He enjoys the radioA. to listenB. to listen toC. 1istening D. 1istening to

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A. to listen
B. to listen to
C. 1istening
(答案→)D. 1istening to
解析：考查固定结构。Enjoy doing sth 喜欢做某事；1isten to sth 听。。。。选D。