I think （listening) to English songs may help you improve your English.

题目

I think （listening) to English songs may help you improve your English.
括号中为什么要用+ing的形式,

答案

I think （listening) to English songs may help you improve your English.这是宾语从句,省略了that.完整句子是I think that listening to English songs may help you improve your English.that 之后为完整的句子,listening是动名词做宾语从句的主语.