4 Replace the words in bold with an indefinite pronoun.
1 I think there's a person at the door, someone
2 Where's Jack? He's in a room in the school,
3 I've looked for my bag in all the places in the
house. I can't find it in any place.
4 There's no food in the fridge
5 Ouch! I've got a small object in my shoe!
6 There's not one place we can buy milk.
2) You ad better not put on this shabby coat.
3) John should express his gratitude for the party.
4) One should not insist on walking in case of rain.
5) He must not demand from Mary to record their conversation.
6) Do you have to talk about all of these cases of murder?
7) One ought not talk indifferently about human rights.
8) Fred should be breaking all records in the discus throw.
9) For various reasons, you should not worry her.
10) Should I come? - No, you don't have to attend our meeting.