作业帮He devoted all his efforts __ children.A.to educating B.educ
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He devoted all his efforts __ children.A.to educating B.educate C.education D.to educational
A devote ……to 把……奉献给……,to 是介词,后面可以跟v-ing形式或者是名词的形式.
再问： 为什么是educating而不是原型
再答： to 是介词，后面跟v-ing形式。 to 是不定式的时候，后边跟上动词的原形。
再问： 怎样判断是介词或不定式
再答： 把固定搭配记牢。to 是介词的固定搭配背会 如：be used to get down to look forward to be accustomed to
再问： 为什么是educating而不是原型
再答： to 是介词，后面跟v-ing形式。 to 是不定式的时候，后边跟上动词的原形。
再问： 怎样判断是介词或不定式
再答： 把固定搭配记牢。to 是介词的固定搭配背会 如：be used to get down to look forward to be accustomed to
He devoted all his efforts __ children.A.to educating B.educ
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