Make questions with "how " in the present perfect. 1. tom/ live in scotland 2. you/ know mr. green 3. paula/ study art 4. mark/ be in paris 5. we/ travel 6. you/ learn german

1 How long has Tom lived in Scotland?
2 How long have you known Mr. Green?
3 How long has Paula studied art?
4 How long have we travelled?
5 How long have you learnt German?