英语语法They sent Mary to a school ? blind students.A.with B.fro

英语语法
They sent Mary to a school ? blind students.
A.with B.from C.for 为什么选C？？？？？详细解释
he was a unique manager because he had several waiters ? him around from one restaurant to another restaurant.
A.follow B.to follow C.followed 为什么选B？？？？？