Add a proper question tag:
The earth is not flat, ________?
isn't it
is it
it is
it isn't
He won't repeat it, _______?
won't he
would he
will he
wouldn't he
She is here, ________?
isn't she
is she
was she
wasn't she
I am very clever, ______?
am I
aren't I
amn't I
isn't I
The cow lives on grass, ________?
does it
doesn't it
do it
don't it
Let us go to the market, ________?
shall we
shan't we
will we
can we
I didn't hurt you, _________?
do I
did I
didn't I
don't I
Have another cup of coffee, ________?
will you
won't you
have you
haven't you
Use your common sense, ________?
can't you
can you
I am not late, ________?
are I
