Yes, prior knowledge about a topic can be very helpful in answering Text completion questions. Text completion questions typically involve filling in the missing words or phrases in a given passage or sentence. Having prior knowledge about the topic being discussed in the passage can assist in understanding the context, which in turn can guide the selection of the most appropriate word or phrase to complete the text.

  When answering Text completion questions, it is important to consider the overall meaning and logic of the passage. Prior knowledge about the topic can help in understanding the concepts, arguments, or themes being presented in the passage. This understanding can then be used to determine the most suitable word or phrase that fits in with the intended meaning of the passage.

  Additionally, prior knowledge can help in identifying key terms or concepts that are relevant to the completion of the passage. For example, if the passage is about a scientific phenomenon or a historical event, having familiarity with the relevant scientific principles or historical facts can aid in selecting the correct words or phrases that align with the context.

  However, it is important to note that prior knowledge should be used in conjunction with the information provided in the passage itself. The answers to Text completion questions are based on the given context and the logical progression of ideas within that context. Relying solely on prior knowledge without considering the specific details provided in the passage can lead to incorrect answers.

  In summary, having prior knowledge about a topic can be beneficial in answering Text completion questions as it aids in understanding the context, identifying key terms or concepts, and selecting the most appropriate word or phrase to complete the text. However, it is crucial to use this knowledge in conjunction with the information provided in the passage to arrive at accurate answers.