This is mostly an English language forum; you might need to run this answer through Google Translate or similar, which is how I read your question.
You want the if macro: (if:). You'll also need what we call a "setter" link. Here's an example:
::Passage 1 (set: $choice to 0)\ Hello. Make a choice. (link: 'choice 1')[\ (set: $choice to 1)\ (goto: 'Passage 2')\ ]\ (link: 'choice 2')[\ (set: $choice to 2)\ (goto: 'Passage 2')\ ]\ ::Passage 2 Text that doesn't change. { (if: $choice is 1)[ You chose 1! (else:)[ You chose 2! ] }