用Hehasn'tcomeyet.这样比较符合语境~~并且你两句的don't都要改为doesn't,因为he,要用第三人称单数~
去了还没回来是Have gone起了已经回来时Have been
给你个标准答案:He borrowed my book,but have't return it yet .这是老外的说话逻辑。祝楼主学好英语~记得加分哦!
去了还没回来:To not come back去了已经回来了:To have back.
Hasn't she arrived? 她还没到家吗?
He borrowed my book but have yet to return it to me.他接借了我的书,还没有还回来
To not come back To have been back
have done to 去了还没有回来have been to 去了已经回来了
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