1. He is a great swimmer. He _______ swim across this river.
2. _______ I borrow your pen for a moment, please?
3. You _______ see a doctor. That cough sounds serious.
4. It's a strict rule. All visitors _______ report to the reception.
5. Take an umbrella. It _______ rain later today.
6. When I was a child, I _______ climb trees easily.
7. You look pale. You _______ to go home and rest.
8. If you want to improve, you _______ practice every day.
9. She _______ be at work. It's almost midnight!
10. _______ you mind closing the window? It's cold.
11. That's a wonderful idea! We _______ definitely try it.
12. The exam was difficult, but I _______ answer all the questions.
13. You _______ have told me the truth. I'm very disappointed.
14. I'm not sure, but I _______ come to the party tonight.
15. You _______ worry about it. Everything will be fine.
16. _______ we go to the cinema tonight?
17. Drivers _______ stop when the traffic lights are red.
18. He didn't answer his phone. He _______ have been sleeping.
19. If I had known, I _______ have come earlier.
20. You _______ touch that wire. It's dangerous.
21. Her lights are on. She _______ be home.
22. _______ I have another cup of tea, please?
23. You _______ be so rude to your elders.
24. She _______ speak four languages fluently.
25. You _______ have studied harder for the test. Your score is very low.
26. This is a library. You _______ be quiet.
27. He _______ be a doctor; he has a white coat and a stethoscope.
28. I promise I _______ forget your birthday this year.
29. You _______ worry; it's a very simple procedure.
30. We _______ have taken a taxi. We are very late now.
31. He _______ have left the office. His coat is still here.
32. You _______ bring anything to the party, just yourself!
33. If you are tired, you _______ go to bed.
34. _______ you like to join us for dinner?
35. She _______ have heard you. The music was too loud.
36. It's not mandatory, so you _______ attend the meeting if you're busy.
37. _______ you speak louder? I can't hear you.
38. My grandfather is ninety, but he _______ still read without glasses.
39. You _______ eat in the classroom. It's forbidden.
40. The road is closed. We _______ find another route.
41. I _______ rather stay home than go out tonight.
42. You _______ have seen him. He was standing right next to you!
43. If you heat water to 100°C, it _______ boil.
44. Children under 5 _______ not be left unattended.
45. She looks upset. She _______ have had a bad day.
46. The tickets are free. You _______ pay for them.
47. "Where's Tom?" "I don't know. He _______ be in the garden."
48. He _______ have forgotten the appointment; he's usually very punctual.
49. You really _______ try this cake. It's delicious!
50. If you finish your work early, you _______ leave.
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