Comparative and superlative

New York is____________(crowded) than Prague.

I think she is the_________(good).

This is the__________(bad) movie I've ever seen.

My sister is__________(young) than me.

He is the__________(interesting) person I know.

Olive oil is___________(healthy) than palm oil.

Thank you.I feel ___________(happy) now.

This is the___________(awful) thing you've ever done.

I am________(fast) than you.

She is the_________(beautiful) girl I've ever met.