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I am keen  --- in about to with as of on  reading.

I am content  --- in about to with as of on  my marks

I am indifferent  --- in about to with as of on  my teachers' opinions.

I am interested  --- in about to with as of on  history.

I am passionate  --- in about to with as of on  cooking.

I am focused  --- in about to with as of on  my studies.

I take pride  --- in about to with as of on  my English.

I am convinced  --- in about to with as of on  his innocence.

I often insist  --- in about to with as of on  leaving me alone.

I usually disapprove  --- in about to with as of on  hate speech.

I regard my school  --- in about to with as of on  a playground.