题目内容：
Directions: There are 10 blanks in the following passage．For each numbered blank, there are 4 choices marked A，B，C．and D．Choose the best one and mark your answer on the ANSWER SHEET with a single line through the center．Smoking is considered dangerous to the health．Our tobacco—seller, Mr. Johnson，therefore，always asks his customers，if they are very young，whom the cigarettes are bought 1 ．
One day，a little girl whom he had never seen before walked 2 into his shop and demanded twenty cigarettes．She had the exact amount of money in her hand and seemed very 3 of herself. Mr. Johnson was so surprise by her confident manner that he 4 to ask his usual question．
Instead，he asked her what kind of cigarettes she wanted．The girl replied 5 and handed him the money．While he was giving her the cigarettes，Mr. Johnson said laughingly that as she was so young she should hide the packet in her pocket in 6 a policeman saw it. 7 ，the little girl did not seem to find this very funny．Without even smiling， she took the packet and walked toward the door．Suddenly she stopped，turned 8 , and looked steadily at Mr. Johnson．
There was a moment of silence and the tobacco seller wondered what she was going to say． 9 at once，in a clear，firm voice，the girl declared，“My dad is a policeman．”and with 10 she walked quickly out of the shop．
请回答（1）题： A．with
B．to
C．for
D．By
参考答案：
答案解析：