Hi Ritwik! Haven't seen you in a while. Welcome back.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
Grammar GeekHi Ritwik! Haven't seen you in a while. Welcome back.Hi!
1. I'm not sure if you "present a debate." You may, your sentence then would be fine. But I would say "Although he was excellent in the debate, he..."
2. Very close - no first comma: Clever though he may be, he failed.
Your prepositions look good to me.