Ease Into Prep with an SAT^® Question of the Day

A glance at the answer choices indicates that this is a Verbs question. Note that the blank is at the beginning of a phase that is set off by commas, so this is a phrase that is supplemental the main idea that "Colvin . . . refused to surrender her own seat." The only verb form that can supplement the main clause in this way is the nonfinite form that ends with -ing. Choice (D), "emulating" is correct.

All other answer choices, "emulated" (A), "emulate" (B), and "will emulate" (C) are all finite verbs that cannot supplement a main idea and, instead, make the supplemental information an incomplete thought.