GRE Text Completion: Fundamental 24 Sets-GRE填空基础24套 - N4Z3W886YX48BQ32!

The legislator is known on Capitol Hill for his oratorical spontaneity, his ability to deliver ____________ speech. A. an enigmatic B. a conscientious C. an impromptu D. an extemporaneous E. a lackluster F. a meticulous