阅读下面材料，在空白处填入适当的内容或括号内单词的正确形式。

    There was no one quite like my father. When any other man had an extra dollar, he bought a drink; when Father had an extra dollar, he bought a book. Other people had pictures on their walls, or at least a calendar; we had books, 3000 of them, ____(line) every surface of our little four-room house ____ every subject. Father was the ____ (more) persistent (固执的) scholar I ever knew. Every summer he took a month or so off to attend classes. Eventually, he earned seven degrees, attended 11 different colleges and universities. My sister and I were the immediate beneficiaries of Father's insatiable (不能满足的)____(hungry) to learn.

    Before I was three, my father was reading aloud to me. Thereafter, I read aloud to him so he'd work on my ____ (pronounce). By the time I was in the fifth grade, I'd recite ____ classical literature to poetry and had to be prepared to do ____ Then Father would warn by quoting a saying from Shakespeare, “____ all the year were playing holidays, to sport would be as tedious(乏味的) as to work. “Obviously, his efforts weren't ____ (entire) in vain, for my voice has enable me to earn a fair livelihood. But that fact doesn't begin to define the most debt ____ I owe my father.

当今时代的主题是（  ）

某学习小组将要进行一次统计活动，下面是四位同学分别设计的活动序号，其中正确的是（　　）