Question

Fill in the blanks with must, should or ought (to).

1. Your questions surprise me, you ... (to know) this. 2. Children ... (to obey) their parents. 3. Though it is a very unpleasant mission, I feel I ... (to tell) you the truth. 4. Why… I (to know) where he is? 5. Let’s tell him all as it is. He ... (to understand). 6. You ... (to apologize) when you saw that his feelings were hurt. 7. You ... (not to eat) so much bread; you will gain weight, which is not good for your heart. 8. She... (not to speak) about such things in the child’s presence. Now you see the result. 9. I ... (to know) that it might come to that. 10. a) If they had been warned in time, they ... (to be) there by now. b) If they were warned in time they ... (to be) there by now. 11. His heart was now thumping so violently he felt it ... (to burst). 12. He gave you just that feeling of assurance, of confidence that a doctor ... (to give).

Answer 1

1. Your questions surprise me, you ought to know this. 2. Children ought to obey their parents. 3. Though it is a very unpleasant mission, I feel I must tell you the truth. 4. Why should I know where he is? 5. Let’s tell him all as it is. He should understand. 6. You should have apologized when you saw that his feelings were hurt. 7. You should not eat so much bread; you will gain weight, which is not good for your heart. 8. She should not have spoken about such things in the child’s presence. Now you see the result. 9. I should have known that it might come to that. 10. a) If they had been warned in time, they should have been there by now. b) If they were warned in time they should be there by now. 11. His heart was now thumping so violently he felt it must burst. 12. He gave you just that feeling of assurance, of confidence that a doctor must give.