Choose the correct answer5. You’re having a sore throat. You’d better___ to the doctor. A. to go B. went C. go D. going 6. My mother permitted me to go out at night. She said, “You ___ go out tonight.” A. may B. have to C. must D. ought to 7. He advised me to take an English course. I ___ it early. A. should have taken B. should take C. will have taken D. may take 8. You ___ ring the bell; I have a key. A. mustn’t B. needn’t C. couldn’t D. shouldn’t 9. It must ___ without delay. A. be done B. have been done C. do D. be doing 10. By the time a baby has reached his first birthday, he should ___ sit up or even stand up. A. to be able to B. able to C. to be able D. be able to 11. Many birds will ___ more than 3,000 miles to reach their winter homes. A. flying B. fly C. be fly D. flew 12. The pen won’t write; It ___ out of ink. A. must run B. must be running C. must have run D. must have ran |