A．He thought it was meaningless for him.

　　B．His friends didn't like to wait for him.

　　C．He had no money to pay for the meals.

　　D．He had to work and study.

　　解析：推理判断题。根据第一段"Hanging out with friends may have been wonderful but it wasn't putting money in my pocket or knowledge in my brain."可知，跟朋友们一起外出闲逛，作者并没有赚到钱也没有学到知识。由此可推知，作者不再与朋友闲逛是因为他得工作和学习。

　　答案：D

　　5．How did the author succeed in balancing work and school?

　　A．By following his friends' advice.

　　B．By turning to his friends for help.

　　C．By organizing and planning in advance.

　　D．By making plans with his friends and his teachers.

　　解析：细节理解题。根据第二段"Scheduling and planning became the key to my success.Making deadlines for myself and meeting them were important for my college experience."可知，作者通过计划自己的时间并且严格执行自己的计划，成功地平衡了自己的工作和学习时间。

　　答案：C

　　6．Which of the following statements is TRUE?

　　A．The author had some difficulty in balancing his job and school.

　　B．The author had enough hours to balance his job and school.

　　C．The author found it was easy to finish the to-do list on time with the help of his friends.

　　D．None of the author's friends understood him and they all laughed at his planning and scheduling.

　　解析：细节理解题。根据第一段"I was back on the see-saw of balancing work and school."和第二段"I tried to make plans with friends which didn't conflict with my deadline.That was actually harder than I thought.So once again my social life had to be put off."可知，作者在平衡工作和学习的过程中有些困难。

　　答案：A

　　7．We may know from the passage that ________．

　　A．the author has been proud of his college life

　　B．planning has become a useful tool for the author's life

　　C．the author didn't succeed in planning his daily life

　　D．planning the author's task makes him feel good

解析：推理判断题。根据最后一段内容可知，学期结束的时候，作者学到了很多。每周刚开始都写一份必须做的事情清单，完成后感觉良好，有种自豪的成就感。作者不但在组织事情上学到很多新的东西，而且学会了运用一种可以带到任何地方的工具，并且有效地运用它。由此可推知，计划制订对作者来说变成了一种有用的工具。