Answer: Upon reading the Title "Abuelito who?" it makes me wonder, who's Abuelito? and who is the who referring too? Was it saying Abuelito who..... did something? It might be about an Abuelito who felt something or did something, it raises many questions.
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I think They were experienced in construction for part A
Answer: A (I think)
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The correct answer is C) The future leader was still a very young man although he joined a war party against the Utes. This sentence has an incorrect structure as it uses the <em>conjunction although </em>where it is not necessary. The second part of the sentence is not subordinated to the first part. In other words, the fact that the leader joined the war party does not depend on the fact that he was very young when he did it.