1 A: Can you work late today?
B: Sorry, but I really can't/don't have to.
2 A: Jill is not answering her phone.
B: She must/should be in a meeting.
3 A: You don't have to/mustn't eat here.
B: Oh sorry. I didn't know.
4 A: Could/Would I see you for a moment?
B: Sure!
5 A: Why are you in such a hurry?
B: I ought to/have to go to the bank.
6 A: Where do you think he is?
B: I have no idea! He must/might have
gone to lunch.
7 A: Why are you so happy?
B: I don't need to/should work late
tomorrow.
8 A: Everyone might/must wear gloves
before they touch the wires.
B: OK. I'll make sure everyone has got a pair.​