- DearDave,I'mhappytobeyourpenpal.I'dliketotellyousomethingaboutChina.ChinaisthebiggestcountryinAsia.It'salmostasbigastheUSA.Chinahasthebiggestpopulationintheworld.Thepeopleherearefriendlyandhard-working.TheYangtzeRiverisoneofthelongestrive...
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