Exerícios de Past simple e Past Continuous

1) Complete the sentences with the words in parentheses, with the comtexto seeing if it is past simple or past continuous:

a) I was _________, when my mother was cooking. ( studing - study - studied)

b) She accepted the job ten years ago and be __________ till today (working - work - worked)

c) I ________ the movie Amanhecer with my friend. (seeing - see - saw)