Answer:
(i) Rose and Ted __<u>must</u>__________ be good players. They have won hundreds of cups!
(ii) You __<u>don't have to</u>___________ pay to use the library. It’s free.
(iii) I’m not sure where my wife is at the moment. She __<u>might</u>___________ be at her dance class.
(iv) Jerry ___<u>shouldn't</u>__________ be working today. He never works on Sundays.
(v) You __<u>must</u>___________ be 18 to see that film.
(vi) You ____<u>should</u>_________ hear this story. It’s very funny.
(vii) Dad _____<u>must</u>________ go and see a doctor. His cough is getting worse all the time.
(viii) You don’t have to shout. I ____<u>can__</u>_______ hear you very well.
(ix) It ___<u>can't</u>__________ be him. I saw him a week ago, and he didn’t look like that.
(x) You look pretty tired. I think you ____<u>should</u>_________ go to bed early tonight.
(xi) Let me look. I. ___<u>might</u>__________ be able to help you.
(xii) “Children, you ____<u>should</u>_________ cross the street if the lights are red!"
(xiii) You __<u>can't</u>___________ sit so near the TV. It’s bad for your eyes.
(xiv) I’m sorry but I _<u>can't</u>____________ give you a lift because my car is broken.
(XV) I _<u>should</u>____________ stop and talk to you now. I have to get to the library.
Explanation: