阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Lin Ning is 19 and he is from Shanghai, China. He 【小题1】(celebrate)his 18th birthday just before he went to university.

He expected to feel 【小题2】(instant)different, as if he had closed the door on his childhood and stepped into a whole new adult world. 【小题3】it wasn't like that. When he woke up the next day, there were still rules 【小题4】(obey)and lessons to attend. In fact, the change has been more subtle and gradual 【小题5】he imagined. Instead of being the selfish teenager he used to be, he has begun to feel more aware 【小题6】other people and to develop a stronger sense of social 【小题7】(responsible).

To give an example, he 【小题8】(sign)an organ donation agreement this time tomorrow. This was a big decision for him and he made it without 【小题9】(ask)his parents. Turning 18 also changed the way that society viewed him. He was really surprised when a bank contacted him with a credit card offer. But he currently doesn't have a steady income, so getting a credit card might tempt him 【小题10】(spend)more money than he has.