choose modal verb

Modal Verbs
Complete the gap from the choices below: mustn't, must, should, can, must, might, could, would, would, should, can't, mustn't.
1. Are you going swimming? ________________ I come with you, please?
2. I'm not going to pay five pounds for a coffee. You _______________ be joking!
3. This is a hospital. People are resting, so you ____________ be quiet.
4. It ____________________rain, so take an umbrella.
5. ________________ I have a quick word with you? Something important has happened.
6. You ________________ smoke here. It's a no-smoking area.
7. You __________________ come and visit us when you are next in London.
8. I'm sure you ________________ love this film. It's brilliant.
9. I _________________ imagine why she married him. He's so stupid!
10. What _________________ you do in my situation? I need your advice.
11. This is the most important thing - you _________________ forget to take the food out of the oven at seven o'clock.
12. They left London at three o'clock so they ______________ be here by now.