The correct choice is "formidable." The context of the passage implies that the construction crew faced significant and challenging constraints. The other choices do not fit the context. "Negligible" means insignificant, "harmonious" implies agreement, and "expendable" indicates something that can be sacrificed.

The correct choice is "disconcerted." The context of the passage describes the board members' concern and unease after learning about the company's losses. The other choices do not fit the context. "Elated" implies happiness, "unfazed" suggests a lack of concern, and "indifferent" means showing no interest or concern.

The correct choice is "eloquence." The context of the passage describes the activist's ability to communicate effectively and persuasively. The other choices do not fit the context. "Belligerence" suggests aggression or hostility, "indecisiveness" implies uncertainty or hesitation, and "nescience" means lack of knowledge or ignorance.

The correct choice is "evocative." The context of the passage describes the documentary's intent to evoke emotions and feelings in the audience. The other choices do not fit the context. "Contentious" suggests controversial or causing disagreement, "ambiguous" implies unclear or open to interpretation, and "monotonous" means lacking in variety or interest.

The correct choice is "deterred." The context of the passage describes the athlete's resolute and persistent attitude despite facing adversity. The other choices do not fit the context. "Reinvigorated" implies renewed energy or enthusiasm, "facilitated" means eased or supported, and "pacified" suggests soothed or calmed.