you will find (him )(a)good boy.
it is very important to (listen carefully to) teachers in class.

保证是对的~求采纳课上全神贯注听老师讲课很重要 it is very important to_________ ____ ____teaches in class 是四个空 但你只写了三个 班上同学说是pay attention to listening但也有同学说是concentrate more on listening ,是哪一个呢？？？？？？？listen后面一定要加to才可以加teachers，上面那两个都不对。应该是concentrate on listening to