students learn their lessons in class.In class teachers teach them..
题目
students learn their lessons in class.In class teachers teach them..
Student sit in the classroom[listening] to the teacher.为什么用listening
答案
students learn their lessons in class.In class teachers teach them..
Student sit in the classroom[listening] to the teacher.为什么用listening
因为listening是【现在分词】,listening to the teacher在此是【现在分词短语】做【伴随状语】.即：listening是伴随sit这一动作同时发生的动作.
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