Indefinite pronouns

I went shopping yesterday but I couldn’t find …................... that I liked.

I can’t meet you tomorrow because I have .....................… important to do.

Thomas ate .................… in his lunch bag except the hamburger.

Excuse me, waiter. There’s something in my soup, I think it’s a fly!

I didn’t go …................. on my holiday. I was so bored!

Did you do ... interesting at the weekend?

…............. can lift this box! It’s too heavy to lift!

.................... answered the phone when I called an hour ago.

I put my glasses somewhere in my office but can’t remember where.

Some scientists believe there is alien life in our solar system.