1. A “calendar stick” carved centuries ago by the Winnebago tribe may provide the first evidence that the North American Indians have developed advanced full-year calendars basing them on systematic astronomical observation. (A) that the North American Indians have developed advanced full-year calendars basing them (B) of the North American Indians who have developed advanced full-year calendars and based them (C) of the development of advanced full-year calendars by North American Indians
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Peterson’s MASTER AP ENGLISH LITERATURE & COMPOSITION Margaret C. Moran W. Frances Holder 2nd Edition About Peterson’s‚ a Nelnet company Peterson’s (www.petersons.com) is a leading provider of education information and advice‚ with books and online resources focusing on education search‚ test preparation‚ and financial aid. Its Web site offers searchable databases and interactive tools for contacting educational institutions‚ online practice tests and instruction‚ and planning tools
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