This gives me an idea to update that lesson a wee bit with some 'advanced' options.
1. and 2. are fine! 3. Vi man sad Arwen? In what place (is) Arwen? 'Man sad Arwen' is 'What place is Arwen' as if Arwen is a place and you're asking where it is 4. Same here - Vi man sad i fen? 5. and 6. are fine 7. Same here, you're saying 'What place is it?' which is a perfectly valid question but you want Mi van sad te? 8. Yip fine 9. Again, so you don't say 'What place is that?' - Vi man sad sa?
Note - edited to change Mi to Vi and remove mutation