Beijing is the third____city in China.为什么用largerst?large不行吗?

the third is to the Where is the BeiJing? The third day of the week is--------- The earth is the third planet. The earth is the third planet. It is the third time that i have been in Beijing.帮忙分析下这句话的语法结构和时态,为什么用have been The third day of a week is ( ). It is＿the third floor. My classroom is on the third floor Which is the third month?怎么回答? this is the third lesson同义句 My favorite lesson is the third the third day in a year is ---- the third paragraph is developed mainly by___. The art room is()()third（） It was the third time that I 访问 BeijinIt was the third time that I 访问 Beijing.怎么翻译 where is the beijing zoo? beijing is in the China