Fill in the Blanks Modal VerbsOnline version Fill the gaps with the correct Modal Verb by Duvan Vargas 1 not must have should to need could to You study hard if you want to approve the exam . Remeber ! it is your last chance Yesterday , I did not feel very well for that reason I eat anything . My Mom do exercise because she has some health problems Colombia be the best country because it is the richest Tomorrow I take the bus earl y