选词填空:
It is through learning that the individual_____many habitual ways of reacting tosituations.
retains\gains\achieves\acquires

The____runner can run two miles in fifteen minutes.
common\usual\average\general

The work in the office was____by a constant stream of visitors.
confused\hampered\reversed\perplexed

During the nineteen years of his career,France Battiate has won the____of a wide audience outside Italy.
enjoyment\appreciation\evaluation\reputation

各选哪个词？请给出详细理由，谢谢！

acquires
average
hampered
reputation