How in your opinion can English be improved?

你认为怎样才能提高英语。

I think it's very hard to make it clear in a few words. On one hand, you must have genuine interest in it; on the other hand, you should make constant efforts.

这几句话很难说清。一方面，你必须对它真正有兴趣，另一方面，你必须坚持不懈。

Is it necessary to listen to some English songs?

有必要听些英文歌吗?

Yeah, it's certainly necessary. In my mind, it's the best way to foster our interest in English.

当然很有必要。在我看来，这是最好的方式来提高英语学习的兴趣。

opinion n.意见，看法，主张

genuine a.真的，非人造的;真诚的，真心的