Compléter Modals of possibility and/or certainty (1)Version en ligne Students have to select the right modal to complete the sentences. par Sarah Muyshondt 1 could must can may might Tourists be certain to see the Crown Jewels at the Tower of London . 2 may must can could might The restaurants in the city be open today , it is Saturday ! 3 could might must can may Tourists prefer to go by foot rather than using the London Underground . 4 might could may must can People who are afraid of heights , not want to visit the Big Ben . 5 can must might could may Some people be annoyed when you ask them to take a photo of you in front of Westminster Abbey .