We must spend as much time as we can ___ English every day.(to read or reading?)

问题描述:

We must spend as much time as we can ___ English every day.(to read or reading?)
有的老师讲用前者,为什么?
为什么不用spend ...doing 这种用法?

动词不定式短语做目的状语那spend ... doing 在这里如何解释?spend...doing 花费时间做某事个人认为两个选项的翻译都一样,只是不同的选项在句子里所充当的成分不同罢了