2. Children ________ obey their parents. A. should B. may C. could D. might 3. ________ I have a day off tomorrow? I have to go home to visit my parents. A. Should B. May C. Ought D. Must 4. As an orphan, Daisy ________ earn her living herself. A. have to B. is able to C. has to D. may 5. Peter ________ hear the speaker at the conference yesterday because the crowd was cheering so loudly. A. couldnt have to B. mustnt C. doesnt D. cant 6. I think you ________ consider Ellen for the position of manager. A. could B. should C. must D. have to 7. She really ________ to apologize to her mother for this. A. must B. should C. ought D.could 8. You ________ forget to pay the rent tomorrow. The landlord is very strict about paying on time. A. mustnt B. may not C. might not D. dont have to 9. ________ you help me with my essay? A. Can B. Should C. Could D. both A and C 10. Because we ________ be there by 8.30, we should hurry. A. have to B. may C. ought D. are able to