这是我平生见过最长的河流.(翻译) This is the longest river ____ I ______ ______ in my life .
问题描述:
这是我平生见过最长的河流.(翻译) This is the longest river ____ I ______ ______ in my life .
答
This is the longest river 【that 】 I 【have seen】in my life .