ПОМОГИТЕ ПОЖАЛУЙСТА!!
17. Can/Should I ask you a question?

18. Will/Shall we go out for lunch today?

19. You must/shouldn’t stay at home if you are ill.

20. Tommy can’t/couldn’t tell the time when he was a baby.

21. My book can’t/mustn’t be in the house. I’ve looked everything.

22. You haven’t/needn’t clean the windows. I’ve already done them.

23. Sam left late for the airport this morning. He should/could have missed his flight.

Can i ask you a question?Shall we go for lunch tonight?You must stay at home if you are ill.Tommy couldn't tell the time when he was a baby.My book can't be in the house. I've looked everything.You haven't clean the window . I have already done themHe could have missed his flight.