What hashe just done? 煮了开水

He hasjust boiled water.

What haveyou just done?  关了空调 

I havejust turned off the airconditioning.

What havethey just done? 去了超市

They havejust been to the supermarket.

What hasshe just done? 读完哈利波特第一本

She hasjust finished reading Harry Porter book one

What hashe just done? 做了晚饭

He hasjust cooked the dinner for us.

What hasshe just done? 剪了头发

She hasjust had her hair cut

havesomething done 让别人做了什么事 

What have you just done？ 我让人修了我的电视机。

I have just had my tv repaired （fixed）

 Whathave you just done? 我修好了我的电视机

I havejust repaired my tv

What haveyou just done? 洗了车/让别人洗车

I havejust washed my car

I havejust had my car washed.

What has he just done？ 包馄饨 

He hasjust made some dumplings

What hashe just done? 打电话给她的朋友

He hasjust ra ng his friend/called his friend

What hasshe just done? 扫地 

She hasjust swept the floor.

What haveyou just done? 削铅笔

I havejust sharpened the pencil.

What haveyou just done? 倒垃圾

I havejust emptied the dustbin.