Directions: Read the sentences carefully. Choose the correct modal on the box below to complete them. ought to shall could must may 6.Lucy and come tomorrow. (uncertainty 7. She can't write that well. She have cheated. (probability) 8. My brother play the cymbals when he was younger. (able to do in the past) 9. I return this medal? (requesting permission) 10. Carlo practice using the drums some more. (advice/obligation/necessity)​