Our teacher is taller than we are.为什么要加are

Our teacher is taller than we are.为什么要加are are you taller than your english teacher You are taller than houses taller some bamboo trees are than our.a you are taller than me和you are taller than I哪句是正确的?为什么? 比较级用法求助I am taller than you are 那you后面为什么要加一个 are 这句话我感觉错了 应 You friends are taller than i am taller than she is后面为什么加is Mr.Li is our history teacher.He is taller than any student i Our teacher is taller than ( ).A.their B.theirs C.they Mr Wang is more s___ than any other teacher,we are all afrai there are only two boys taller than me in our class的同义句是什么