In the following three passages, some of the words have been left out. First read the passage over and try to understand what it is about. Then fill in the blanks with the help of the alternatives given.
Passage I:

Billy Arjan Singh was a wildlife enthusiast. Billy's fight 46 hunting put 26 professional Shikar companies out of jobs.  47 his failing health, he had 48 a writ in the Allahabad High Court against 49 in Dudhwa. This is apart from a 50 battle that he 51 to have the offending railway tracks 52 through Dudhwa shifted to  53 its inhabitants a peaceful 54. The only regret he had was “there was so much 55 to be done for tigers and so little time”. Billy's contribution will always be remembered by wildlife lovers.