答案:it was in1984【when】an earthquake happened【that】 I was born
这是一个强调句,把强调部分,it was .that 去掉,把句子恢复:
I was born in 1984 when an earthquake happened
所以强调部分就是 :in1984,an earthquake happened 是定语从句,句子中不缺少成分.
使用关系副词when连接,剩下的空就是强调部分的that 了
无疑后请采纳.
书山有路勤为径,学海无涯苦作舟.
-----------与君共勉-----------