Translate the following underlined sentences into English.我发现，除了职务上的必须及人情上所不能免的活动外，我的时间大部分都浪费了。我应集中精力，读我所未读过的书。我应该利用所有的时间，写我所要写的东西。
I SHOULD HAVE CONCENTRATED MY ENERGIES ON READING WHATEVER BOOKS I HAVE NOT YET READ. I SHOULD HAVE UTILIZED ALL MY TIME IN WRITING ANYTHING I WANT TO WRITE.
