Hello. I would be very grateful if you helped me with a few sentences.

1) Which part of the book did you like the most? (Did I use "the most" correctly?)
2) Anlyze US involvement in global affairs. (I didn't use THE before US involvement. Am I right?)
3) Speak on the prospects for Turkey's integration into the EU. (I'm not sure whether it's FOR, maybe, OF?)
Thank you very much.

3 answers

1 and 2 are correct.

3. For is o.k., but of is better.

Thank you, dear Ms.Sue.

You are very welcome, Ilma.