As for Bachchan, he reads the Lokmatnewspaper, and that is as Maharashtrian as he becomes.
https://m.rediff.com/movies/report/sarkar-3-review-the-cycle-of-doom-has-been-completed/20170512.htm
The above is a movie review.
Please explain to me the form and function of "that" and "as...as" structure? What does "that" refere to? I know "as...as" is used for comparisons but how "Maharastrian(someone who lives in Maharastra State in India)" can be cam pared with "he becomes"?
Thanks
"that" refers to his habit of reading the Lokmat newspaper. e. e.
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"that" refers to his habit of reading the Lokmat newspaper. He becomes (i.e. adopts the characteristics of) a Maharashtrian to the extent that he reads the Lokmat newspaper, but no further, i.e. in other respects he does not seem Maharashtrian.