I know Cantonese(粵語) is the most widely spoken language in Hong Kong.
Many Hong Kong people speak Cantonese as their first language.

Then what is Hong Kong people's second language?
Is it English or Mandarin(Putonghua普通話)?
Which language do Hong Kong people generally speak better?

I heard before that Mandarin Chinese is the most "spoken" language in the world. Before I heard this, I thought that English held that title. Is Mandarin Chinese just the most common native/first language? Is English the most universally known language?

I don't know exactly what was measured in order to obtain this fact.

Hello, Which provinces/cities speak mandarin as a first language besides Beijing and Shenzhen?

Thanks.

How can I make friends with the people who want learn Chinese language? where to get this friend who English language is their first language and they want learn Chinese language.
I can speak Chinese and I want have some friends who are speaking English.