Rewrite the sentences using the words in brackets.
- The charity is holding an event with the purpose of raising money for the homeless. (in order to)
- He wants to get a university degree in hope of improving his career prospects. (so as)
- She went abroad because she wanted to join a volunteer programme. (so that)
- He uses humour as a way of hiding his nervousness. (to)
- Write down your PIN. I don't want you to forget it. (so that)