Pick out of the most effective words from the given words to fill in the blanks to make both sentences meaningfully complete.
1) I have never been able to _________ the reason for your _________ hostility towards my brother.
2) Ravi's friends fail to _________ how a teetotaller like him turned into a/an ____________ alcoholic.
1
Control, fugitive
2
Comprehend, inveterate
3
Familiarise, perilous
4
Subsume, notorious
5
Follow, resurgent