One of the most scenic areas is the Loire Valley,where you can visit the old castles in which the kings and queens of France used to live.这句话里面为什么有in?in在这里表达的是什么意思?

one of the most one of the most famous one of the most 与the most 有什么区别 one of the most famous writers (中文) one of the most famous sports___(star) one of the most sicenic areas怎么说 one of the most famous sports___(star) one+of+the+most加什么 是one of the most famous peoples还是one of the most persons one of the most是不是加复数?Alarm clock is one of the most annoying_________(invention). 英语翻译 one of the most venerable in the books But you're the one I love the most of one of 加最高级 it's one of the biggest and most famous museums in the world.most前加不加the 英语作文:Computers--one of the most helpful inventions S( )is one of the world's most popular sports Football is one of ______ (world) the most popular sports. Yuan longping is one of the most famous .in china. Because english is one of the most u______ languages