第二节 短文理解2
阅读短文，从各题所给的三个选项中选出最佳答案。
One day an old man went into tile post office. He wanted to post (寄) a letter. He had never posted a letter be forcer Fie bought a stamp (邮票) and gave it together (一起) with his letter to the girl at the desk. "Oh. no？ tile girl said. "You must slick (贴) the stamp on yourself. " He didn't know where to slick the stamp. so again he asked the girl. "You may Slick it on yourself. " the girl answered again. Then the man stuck the stamp on the body and went away.
The old man went to the post oflqee th order to ______

A. post a letter
B. buy a stamp
C. see the girl