Question 1. Fill in the blanks using must, mustn’t, don’t have to, should, shouldn’t, might, can, can’t!
(i) Rose and Ted _____________ be good players. They have won hundreds of cups!
(ii) You _____________ pay to use the library. It’s free.
(iii) I’m not sure where my wife is at the moment. She _____________ be at her dance class.
(iv) Jerry _____________ be working today. He never works on Sundays.
(v) You _____________ be 18 to see that film.
(vi) You _____________ hear this story. It’s very funny.
(vii) Dad _____________ go and see a doctor. His cough is getting worse all the time.
(viii) You don’t have to shout. I _____________ hear you very well.
(ix) It _____________ be him. I saw him a week ago, and he didn’t look like that.
(x) You look pretty tired. I think you _____________ go to bed early tonight.
(xi) Let me look. I. _____________ be able to help you.
(xii) “Children, you _____________ cross the street if the lights are red!"
(xiii) You _____________ sit so near the TV. It’s bad for your eyes.
(xiv) I’m sorry but I _____________ give you a lift because my car is broken.
(XV) I _____________ stop and talk to you now. I have to get to the library.​