it's nice of you to spend so much time showing me around your school为什么选ppend而不选take

记住以下结构
sb takes time to do
sb spends time doing
sb gives time to doing
sb devotes time to doing
it takes sb. time to do.
（非常重要）

人做主语用spend

spend 和take 都有花时间做某事的意思,区别在主语部分.
如果是人做主语,就是sb spend some time doing sth
而take 的主语必须是事情.it takes sb some time to do sth