_______ speeches are often given at a graduation ceremonies
Explanation:
An act of graduation is the official ceremony <em>that closes the school year and serves as recognition to the students who, throughout it, have completed the academic requirements of a curriculum.
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<em>The act has the presence of academic authorities and is usually chaired by the rector or director, who can invite a relevant personality of social and cultural life to act as sponsor of the promotion and deliver a speech</em>: <u>commencement speech, is the name.</u>
