GRE Text Completion: JiJing 1373-GRE填空机经1373题 - W87S4ADCXHSGTROGA

Berwick, middle-aged, soft-spoken, and ____________, with a keen sense of how to use this apparent ordinariness to his advantage, began with a gripping story about how a firefighter saved himself during a forest fire by using a completely improbable tactic. A. imperturbable B. implacable C. unimaginative D. unprepossessing E. unremarkable F. unruffled