1. A. factories B. schools　　　　　　　 C. shops　　　　 D. restaurants

15. D。among the happiest of my life 意为“是我一生中最快乐的时候的一部分”。其他介词都不对。

73

　　　 Ballpoint pens have made life easier for millions of people. At one time 　1　 　did not like their students to 　2　 　with pen. Perhaps it was because pens can leak(漏) and it is 　3　 　to spill(溢出) the ink. And it is hard to write on thin or cheap paper with them.

　 　 Ladislao Biro 　4　 　for a newspaper in Budapest. He spent all day 　5　 　his desk. Day in and day out, he corrected 　6　 　of thin, cheap paper with a pen and ink. He often had to stop to 　7　 　his pen and it did not write 　8　 　on the thin paper. He and his brother George 　9　 　some experiments. They wanted a pen that did not leak, with ink that did not spill. Why not 　10　 　a little ball at the end?

Two Englishmen, Henry Martin and Frederick Miles, like the 　11　 .It was the 　12　 　of the Second World War. The Air Force 　13　 　a non-leak, non-spill pen for the men to write with in 　14　 . Martin and Miles made and 　15　 　many thousands of Biro “writing-sticks” to the Air Force.

14. B。意为“还有空位子”。

13. B。 A和C绝不能用，因为后面有名词boys， the other表示“其他所有的男孩”，故也不能选。

12. A。此处只有用anyone，意为“谁也不认识”。

11. A。从上下文的意思看是转折关系。

10. B。由此可见作者知道校长大多要问这样的问题，也想出了一些回答方法。think of “想出”。

9. C。根据常识可知。

8. D。这里强调“让我们走进他的办公室”。

7. C。从at least可知不选A或B，但根据上下文可知也不可能选D，c 最恰如其分