Rewrite the sentences with the right tense form. Use the words in brackets. Which of these sentences are false?
1. Scott's expedition was not successful, (because) Scott made a lot of mistakes.
2. Scott came to the South Pole, (before) Amundsen came to the South Pole.
3. Bill Gates couldn't go to the University, (because) He didn't finish school.
4. Mother Teresa became a nun. (before) She got the Nobel Peace Prize.