MTEL Communication Literacy Skills : Writing Practice Test

The primary role of a concluding sentence in a paragraph is to reinforce the main idea. This sentence typically wraps up the discussion presented in the paragraph and provides a final insight or emphasis on the key point. It helps to ensure that the reader is left with a clear understanding of the paragraph's focus, tying back to the topic sentence or central theme presented. By reinforcing the main idea, the concluding sentence contributes to coherence and clarity, guiding the reader to recognize the significance of the information discussed.

Other options may involve elements of closing thoughts, but they do not fulfill the specific purpose of a concluding sentence as effectively. Introducing a new idea, for instance, would detract from the clarity of the paragraph, while asking a question might leave the reader with unresolved thoughts instead of a sense of closure. Summarizing all points can be broader than necessary and might not directly reinforce the central message specifically. This is why reinforcing the main idea is both essential and most aligned with the function of a concluding sentence.