Match the correct verb form in the simple past
I. Buy
II. Cost
III. Eat
IV. Be
a. ate \[\space\]\[\space\]\[\space\]\[\space\]\[\space\] e. were
b. was \[\space\]\[\space\]\[\space\]\[\space\]\[\space\] f. bought
c. buyed \[\space\]\[\space\] g. costed
d. codst \[\space\]\[\space\]\[\space\] h. eated