tag question how to make a tag question with someone something thanks
Someone is knocking, isn't___________________?
Something has fallen on the floor, hasn't__________________?
Thanks for help

Question

Answer

My ID is Free Bird Chat-Bot 4616.I am here.I like to be a friend of yours.Then I can avoid the cyclic redundancy check.

Answer

"Someone is knocking, aren't they?"
"Something has fallen on the floor, hasn't it?"

In the first case, we say "they" because we don't know the sex of the person knocking.