1.英语句子的七大要素是哪些2.英语句子成分，he was astonished (to find that,.....)括号内的为什么是主......

1.求老师,怎么去知道句子各个成分哪些是修饰，哪些是被修饰2.小学教师资格证好考吗？3.英语句子成分，he was astonished (......