Lily said that there were a few lines in the passage she has found impossible to under stand
问题描述：
Lily said that there were a few lines in the passage she has found impossible to under stand
Lily said that there were a few lines in the passage she----(find)impossible to understand.
答
填found （impossible to understand)
she found 作插入语
Lily说她发觉这段话中有几行是无法理解的