tolong kerjakan bhs inggris

SIMPLE PAST TENSE
Answer :
1) (-) She wasn't a famous artist
(?) Was she a famous artist?

2) (+) They were students of Oxford University
(-) They weren't students of Oxford University

3) (+) John talked to his mom yesterday
(?) Did John talk to his mom yesterday?

4) (+) Rusman got certificate last month
(-) Rusman didn't get certificate last month