2. 专升本
  3. Ballpoint pens have made life easier for millions of people. At one time【C1】________did not like their students writing with pen

Ballpoint pens have made life easier for millions of people. At one time【C1】________did not like their students writing with pen

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问题     Ballpoint pens have made life easier for millions of people. At one time【C1】________did not like their students writing with pens. The reason was【C2】________pens can leak and it is very easy to spill the ink. Besides, it is very hard to write on【C3】________or cheap paper with them.
    Ladislao Biro worked【C4】________a newspaper in Budapest. He spent all day at his desk. Day after day, he corrected pages of thin, cheap paper with a pen and ink. He often had to stop to【C5】________his pen with ink and it did not write well on the thin paper. He and his brother began some experiments. They wanted a pen that did not leak, with ink that did not spill. Why not【C6】________a little ball at the end?
    Two Englishmen, Henry Martin and Frederick Miles, liked the【C7】________It was the time of the Second World War. The Air Force【C8】________a non-leak, non-spill pen for the men to write with in【C9】________Martin and Miles made and【C10】________thousands of Biro pens to the Air Force.
【C6】
选项 A、using
B、to using
C、used
D、use
答案D
解析 why引出疑问句时，其后可用省略to的不定式，肯定式“why+动词原形”常表示疑问、不满或委婉的批评；否定式“why not+动词原形”常表示建议等。根据句意“为什么不在末端使用一个小球呢?”和空前的Why not可知，此处表示建议，所以空处应用省略to的不定式。故选D。
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