Books are the important records we keep____ man's thoughts, ideas and feelings.

A. up         B. of         C. for         D. on

Books are the important records we keep___ man’s thoughts, ideas and feelings.

A. up         B. of         C. for         D. on

Books are the most important records we keep________man’s thoughts, ideas and feelings.

A.up        B.of                C.for           D.on

Books are the most important records we keep ________ man’s thoughts, ideas and feelings.

A. up           B. of   C. for           D. on

Books are the most important records we keep ________ man’s thoughts, ideas and feelings.

A. up      B. of   C. for     D. on