Multiple choice The man asked the tailor if he could _______ the length of his trousers for him. alter alteration adaptable evolve Reveal answer Fill a bubble to check yourself A Correct answer Explanation The modal verb 'could' must be followed by a base verb. 'Alter' is the correct verb form meaning to make changes to clothing. 'Alteration' is a noun, 'adaptable' is an adjective, and 'evolve' does not fit the context of tailoring.