GRE Text Completion: Fundamental 24 Sets-GRE填空基础24套 - 3GQ9XFMGZGF21MK1!

John Hope Franklin's From Slavery to Freedom was ____________ book because it permanently altered how United States history was studied. A. an influential B. a comfortable C. a momentous D. a confusing E. an outrageous F. a baffling