请帮忙给出正确答案和分析，谢谢！
His pulse is not very regular.（英译中)
His pain is past now.（英译中)
His book came out last month.（英译中)
July is the hottest month in a year in my hometown.（英译中)
His brother is my classmate.（英译中)
My mother is fifty years old.（英译中)
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