一个英语问题？

Question

One of the very first animated sound films ever made。这里的made如何解释？

Answer 1

本句中的ever made为过去分词作后置定语，功效相当于一个定语从句。[注：过去分词作后置定语，表示被动或完成，而现在分词作定语表主动或进行。
本句相当于：one of the very first animated sound films （that were ever made），刮号中的为定语从句。

Answer 2

have
dificulty
doing是固定搭配，所以要用supporting
he
was
used
to是作定语修饰前面的主语the
country
life，HAS
CHANGED是谓语，HAVING
CHANGED不可以做谓语

Answer 3

第一个，其实考的是一个固定用法：have
difficulty
（in）doing
...，这里省略了in
第二个，主语是the
country
life
，单数，所以谓语动词为
has
changed