My grandpa would like the radio.A. to listen B.to listen to C. listening to

问题补充：

My grandpa would like the radio.

A. to listen B.to listen to C. listening to

答案：

解析：would like后接名词或者动词不定式作宾语，表示想要做某事。Listen是不及物动词，接动作对象时，一般要加介词to，故选B。

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