CONTEST No purchase is necessary and a purchase won't increase your chances of winning. SPONSOR(主办方) Sponsor is National Geographic Society, 1145 17th Street, N.W., Washington, D.C. 20036-4688 TERM The Ocean Flag Contest begins November 1, 2010 and ends February 20, 2011. Entries must be postmarked by February 20, 2011 and received by February 26, 2011. Entries become the property of Sponsor and won't be returned. The Contest consists of the stages presented below, as described fully in these Official Rules. Stage Starts Ends Submission(递呈) Nov.1, 2010 Feb.20, 2011 Judging On or about Feb.26, 2011 On or about March 15, 2011 Voting On or about March 22, 2011 At 11:59 p.m. April 05, 2011 WHO MAY ENTER The Contest is open only to legal citizens of the United States who are eight to four years of age. Employees of Sponsor and their immediate family members, regardless of where they live, aren't allowed to enter or win a prize. Entrants(参赛者) must have a parent's permission to enter. HOW TO ENTER To enter, go to our website to download and print an entry form. Complete the form with your name, address, telephone number, email address (if available), date of birth, and parent's signature. Mail your completed entry form, Flag Design, and Essay. Entry must agree with the following requirements: ● Create a design for a flag on plain paper. The Flag Design must represent ocean exploration and the protection of ocean ecosystems. ●Write an essay, not more than 250 words in length describing what inspired your design. ●The Flag Design and Essay must each be a single work of original material created by the contest entrant. No other party has any right, title, claim or interest in the Flag Design or the Essay. Changing or improving a third party's pre-existing work doesn't qualify as entrant's original creation. Limit one entry per person. 1. According to the passage, the entries must be posted _____. A. before Nov. 1, 2010 B. before Feb. 20, 2011 C. before Feb. 26, 2011 D. before Mar. 22, 2011 2. The contest is intended for ______. A. the employees of Sponsor B. 8 to 14-year-olds of the US C. legal citizens of Washington, D.C. D. the family members of Sponsor 3. The main purpose of the Contest is to ______. A. improve kids' painting skills B. develop kids' sense of competing fairly C. improve kids' communication skills D. develop kids' sense of protecting the ocean 4. It can be inferred that once the entrants post their work, they ______. A. can share it with other entrants B. can not contribute it to any other party C. can exchange it with other entrants D. can not improve it with any other party