she didn't know which one to take How often are the Olympic Games hold?

问题描述:

she didn't know which one to take How often are the Olympic Games hold?
为什么用take 不用buy!句子意思是她不知买哪个
为什么用are不用does!如果是被动语态又不是过去分词held!

1.个人以为take和buy按语法和语意来讲都是可以的,但前者较为地道,念起来顺口.
2.原句应该有语法错误,这里应该用被动态,就是楼主所说的are...held.