1) She decided to act as the mediator between the two feuding parties.

2) The teacher asked the students to act as respectful listeners during the presentation.

3) He agreed to act as the spokesperson for the team at the press conference.

4) The smartphone can act as a calculator, camera, and music player all in one device.

5) The dog was trained to act as a therapy animal for patients in the hospital.

6) The senior employee was asked to act as a mentor to the new hires.

7) The company will act as the official sponsor for the charity event.

8) The committee appointed a member to act as the chairperson for the meeting.

9) The older sibling was expected to act as a role model for their younger brother.

10) The robot was designed to act as a companion for elderly individuals.