Fill in the Blanks 2. Modal verbs: can, could, should, mustOnline version can, could, should, must by MARIA DEL PRAD SOBRINO DE TORO 1 should can´t could mustn´t can must shouldn´t couldn´t 1 . You include fruit and vegetables in your meals . You eat a lot of fast food . 2 . I touch my knee with my elbow now . 3 . I touch my knee with my chin when I was younger . 4 . We see the exhibition because the museum was closed . 5 . Visitors speak quietly in the museum . 6 . Visitors touch the exhibits . 7 . I go to the cinema today , I´m busy .