Question

complete the sentence with the word that best fits the overall meaning and tone. during the science, space, and technology committee hearing, the senator asked the nasa panelist to ______ her position on the team before commencing. confirm ensure ascertain

Explanation:

• "Confirm" means to state that something is definitely true or to give evidence or proof of something. In this context, the senator is asking the NASA panelist to state or verify her position on the team.
• "Ensure" means to make certain that something will happen or be the case. This doesn't fit as well as "confirm" because the senator is not trying to make her position happen but rather have her state it.
• "Ascertain" means to find out for certain; to discover or establish. The subject of "ascertain" is usually the one doing the finding out (e.g., The senator will ascertain the position), not the one being asked to do it.

Answer:

confirm