他是一名正在康复的吸毒者，现在帮助其他人。

He is a recovering drug ___addict who now helps others.

我叔叔曾是个赌徒，失去了一切。

My uncle was a gambling ___addict and lost everything.

我必须承认，我完全是个巧克力控。

I must confess, I'm a total chocolate ___addict.