In the current context of society, learning foreign languages, particularly English (the common language of the whole world) plays a huge role. Fluency in foreign languages allows us to communicate, cooperate, and cultural exchanges with countries around the world In Vietnam nowadays English is a compulsory subject at all levels. English is an indispensable item for students who want to find a good job after graduation. To become proficient in a language, we must not only focus on grammar, sentence structure, vocabulary, .. but also need to pay attention to linguistic culture. In the process of communicating in English, Vietnamese or any other language in the world, the question plays an extremely important role. Questions are posed to collect information, opinions, feelings, knowledge. However, there are many questions that are posed but are not intended to find answers but are simply meant to emphasize the content of the person who wants to convey, which is called a rhetorical question. In this research, the author focuses on analyzing and comparing the use of rhetorical questions in English and Vietnamese to improve presentation skills. Keyword: rhetoric question, rhetoric question in English, rhetoric question in Vietnamese, presentation skill