found out from them the exact time the star had appeared.这句英语里,在time和the之间可不可以加when

问题描述:

found out from them the exact time the star had appeared.这句英语里,在time和the之间可不可以加when
found out from them the exact time the star had appeared.这句英语里,在time和the之间可不可以加上when或that?还是说中间什么都不能加?

found out from them the exact time the star had appeared.
这个句子已经完整 符合英语语法要求
想加是我们中文的习惯动作,加也可以 但就要考虑用when 或 that 是用定语从句还是状语从句了,自己决定了~