most people when [left/leaving] free to fill their time according to their won choce, are at a loss to think og anything sufficiently pleasant to be worth [to do/doing ].
괄호속 정답 설명해주세요..

very early in my boyhood, i had acquired the habit of going about alone to amuse myself in my own way
왜 myself가 왔는지 모르겠어요.ㅠ

and as she loved all living things herself, she was quite (satisfied/satisfying) that i was not going queer in my head.
답..설명좀 해주세요..