4.2
2 Where's John? He is in the kitchen. He is cooking.
3 You are standing on my foot. Oh, I'm sorry.
4 Look! Somebody is swimming in the river.
5 We're here on holiday. We are staying at the Central Hotel.
6 Where's Sue? She is having a shower.
7 They are building a new hotel in the city center at the moment.
8 I am going now. Goodbye.
4.3
3 She is sitting on the floor.
4 She isn't reading a book.
5 She isn't playing the piano.
6 She is laughing.
7 She is wearing a hat.
8 She isn't drinking coffee.