3 Complete the sentences with indefinite pronouns. 1 ... had a good time at the party. The music and food were great.
 2 ‘There’s ... at the front door.’ ‘Who is it?’
 3 ‘There’s ... behind the door.’ ‘What is it?’
 4 There’s ... in the house. They’ve gone to the cinema.
 5 ‘What’s wrong?’ ‘There’s ... wrong. I’m fine.’ 
 6 Is there ... dangerous in this box?
 7 The museum was amazing! I saw ... in it!
 8 I can’t see ... in the classroom. All the students are at home.