Очень Задание 6. 
 The owners ... the window unlocked. Their flat was robbed.
 don’t have to leave
 shouldn’t have left
 must leave
 need to leave
 Задание 7. 
 Applications ... by the 16th of April.
 must receive
 must be received
 have received
 will receive
 Задание 8. 
 You ... always wear a life jacket when you go canoeing.
 can
 have to
 should
 would
 Задание 9. 
 It’s later than I thought. I ... go.
 could
 can
 would
 must
 Задание 10. 
 I found a wallet on the bench. I ... take it to the police station as soon as possible.
 can
 will have to
 ought to
 am to
 Задание 11. 
 It’s late. You ... go home as soon as possible.
 can
 could
 will
 should
 Задание 12. 
 “You ... follow a healthy diet,” the doctor said.
 can
 ought to
 must
 will
 Задание 13. 
 “You ... follow a healthy diet,” my friend said.
 can
 ought to
 must
 will
 Задание 14. 
 You ... to me for help! But you chose him over me!
 ought to have come
 should come
 can come
 will come
 Задание 15. 
 You ... so many apples. I have already bought some.
 doesn’t need to buy
 needn’t have bought
 should buy
 can buy
 Задание 16. 
 “Sorry, I’m late again.” – ”You ... wear a watch.”
 can
 might
 must
 should
 Задание 17. 
 We ... go shopping this week. We’ve got plenty of food.
 needn’t
 should
 can
 mustn’t
 Задание 18. 
 “She should be here by now.” – “She ... the train.”
 should miss
 must have missed
 ought to have missed
 can miss
 Задание 19. 
 Kate ... get embarrassed. His remark was not polite.
 should
 would
 ought to
 must
 Задание 20. 
 You ... here until I return. Don’t go anywhere.
 can stay
 are to stay
 might stay
 need to stay
 Задание 21. 
 I hope you won’t tell this to anyone. You ... tell anyone!
 shouldn’t
 didn’t have to
 needn’t
 mustn’t
 Задание 22. 
 People ... keep their words.
 have to
 ought to
 can
 are able
 Задание 23. 
 Their house is really small. They ... change it if they want to live in comfort. 
 may
 should
 have to
 will
 Задание 24. 
 You ... read 40 pages of the book for your home assignment.
 are to
 need to
 ought to
 can
                                                                                                
                            
                            
                            
                                
                            
                            
                                
                            
                            
                            
                         
                    
6) shouldn’t have left
7) must be received
8) should
9) must
10) ought to
11) should
12) must
13)ought to
14) ought to have come
15) needn’t have bought
16) should
17) needn`t
18) must have missed
19) must
20) are to stay
21) mustn`t
22) ought to
23) should
24) are to