I need ________ some emails.
to answer
answer
answering
I don´t know what ________
I doing
to do
do
that I do
I don´t really mind ________ housework.
to do
doing
do
did
It´s free. You ________ pay.
don´t have to
haven´t to
mustn´t
You ________ drink so much coffee.
don´t should
not should
shouldn´t
Call me if you ________ a taxi.
didn´t find
don´t find
not found
won´t find
She forgot his birthday, but he didn´t forget ________.
she
hers
her
herself
