填 in,我的爷爷整个一生都在学习英语
spend sometime on sth/in doing sth花费多少时间在...上/做某事
这是固定搭配
My grandpa spends his whole life __on___studying English
希望可以帮到你~
填介词IN, 和SPEND在一起用,后面跟的是动名词短语,spend on是指在什么事上花费了时间,后面接的是名词,而spend in doing是指在做什么事上花费了时间,后面接的是动词+ING。希望能给你参考.
in
spend some time in doing sth
花时间做某事
spend in one's time ( in) doing sth 某人花费多长时间做某事
同意思短语有 it takes sb some time to do sth
sth costs sb some time to do sth
in !!!!固定用法 spend (in)doing STh...........原创,望采纳?