Question

Нужно добавить окончание:не так ли?
He hasn't locked the door, ... ?
They have joined us,... ?
She hasn't finished reading, ... ?
We have started Text 5, ... ?
The children have helped their parents, ... ?
She hasn't danced a lot, ... ?
They haven't  laughed, ... ?

Answer 1

, has he?
, haven't they?
, has she?
, haven't we?
, haven't they?
, has she?
, have they?