Viết lại câu với từ cho trước

1 It's nearly twenty years since my father saw his brother
--->My father hasn't......
2 Although he was seriously ill, he was determined to finish his work
--->In spite of.......
3 When did you last ride a bike?
--->How long.....
4 Seeing Nelson Mandela will always stay in my memory
--->I will never......
5 I've still got the camera because no one has claimed it
--->I've still got the camera because it......