nancy did have great fun__she paid a visit to her cousin in new york last year 填啥?是不是that?
问题描述：
nancy did have great fun__she paid a visit to her cousin in new york last year 填啥?是不是that?
因为我觉得好像从句里面什么成分都不缺
答
when
当nancy去年去看望她在纽约的兄弟姐妹时,她玩得很开心.
这里用that的话,作定语从句或宾语从句都不合适.所以应该用when,作状语从句