I always spend much time ___ the classroom and never play sports.为什么写清楚

I always spend much time ___ the classroom and never play sports.为什么写清楚
I always spend much time ___ the classroom and never play sports.
为什么写清楚

I always spend much time ___ the classroom and never play sports.为什么写清楚
in
in the classroom 在这里是介词短语做地点状语,此句的spend 不是“花费”,而是“度过”
常用于下列结构：
spend +时间+ 表地点的副词,介词短语等

in
整句话的意思是：我总是花很多时间在教室呆着，从来不运动。
in the classroom 在房间里，固定搭配