Ballpoint pen have made life easier for millions of people. At one time (1)______ did not like their students to (2)_____ with them. Perhaps it was too easy. Pens can leak(漏) and it is (3)______ to spill 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 it did not spill. Why not (10)______ a little ball at the end?
　　Two Englishmen, Henry Martin and Frederick Miles, liked the (11)_____. It was the (12)______ of the Second World War. The Air Force (空军) (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.
　　( )1. A. factories B. schools C. shops D. restaurants
　　( )2. A. play B. write C. come D. meet
　　( )3. A. easy B. hard C. free D. popular
　　( )4. A. left B. waited C. looked D. worked
　　( )5. A. on B. near C. at D. in
　　( )6. A. mistakes B. books C. pages D. diaries
　　( )7. A. mend B. fill C. brush D. change
　　( )8. A. well B. down C. out D. up
　　( )9. A. kept B. finished C. began D. studied
　　( )10.A. find B. wear C. grow D. use
　　( )11.A. matter B. result C. meaning D. idea
　　( )12.A. day B. time C. break D. year
　　( )13.A. bought B. took C. needed D. preferred
　　( )14.A. planes B. ships C. trains D. buses
　　( )15.A. sold B. lent C. moved D. passed
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