问题描述: plant more trees to make our city greener为什么后面接to 1个回答 分类:英语 2014-12-13 问题解答: 我来补答 to do为不定式(非谓语中的一种),此处作为句子的状语,表目的.同类句子如:I had to shout to be heard .To do good work .one must have proper tools . 展开全文阅读