高校问答吞噬星空txt精校版下载:改写句子，是句意不变
来源：百度文库 编辑：高校问答 时间：2024/04/28 06:07:55
He became an engineer when he was 25 years o;d in 2000.
He ___ ___ an engineer ___2000.
It's ten years since his father died.
His father ___ ___ ___for ten years.
He ___ ___ an engineer ___2000.
It's ten years since his father died.
His father ___ ___ ___for ten years.
has been since
has been dead
was not before
has dead