填空 In the past, people didn't use stamps. They had to pay money when they received letters. Rowland Hill, a schoolmaster in England was the first 1 using stamps. He thought it 2 much easier for people to use 3 . They could go to the nearby 4 to buy stamps and put them on envelopes(信封) 5 they 6 letters. The post office only put seals(印章) 7 the stamps so that people could not use the stamps 8 . In this way, the post office 9 send postmen to collect(收) money. It only needed 10 postmen to deliver(投递) letters. The government finally accepted(接受) the good idea. (     )1. A. to think (     )2. A. could be (     )3. A. a stamp (     )4. A. a shop (     )5. A. after (     )6. A. sent (     )7. A. in (     )8. A. again (     )9. A. need not to (     )10.A. few B. thinking B. will be B. stamps B. school B. before B. send B. over B. too B. didn't need to B. fewer C. to think of C. is C. stamp C. village C. in C. to send C. on C. either C. needed not to C. many D. think about D. was D. stampes D. post office D. with D. sended D. above D. also D. didn't need D. much