题目内容：

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。

Parents often believe that they are good with their teenagers. But during the summer vacation in 2014, Joanna and Henry   1.(notice) a change in their son: suddenly he seemed to like talking   2.to his friends than to his parents. “The door to his room is always shut,” said Joanna.

Tina and Mark noticed the   3. changes in their 14-year-old daughter. “She      4. to sit with me on the sofa and talk,” said Mark. “But now we find that she does this only when she wants something. Sometimes she wants to be treated like a little girl and sometimes   5.a young lady. The problem is finding out which time is which.”

Before 11, children like to tell their  6. what’s on their minds, “In fact, parents are first on the list,” said Michael Riera, writer of Uncommon Sense for Parents with Teenagers. “But this completely changes during the ten years,” Riera added. “They talk to their friends   7., then maybe their teachers, and their parents last.”

Parents who know what’s going on in their teenagers’ lives are the best to help them. To break down the wall of silence, parents should create chances to understand     8.their children want to say, and try to find ways to talk and write to them. And they must give their children some freedom.  9.thing parents should remember is that to be a friend, not a manager(管理者), with their children, is a better way  10.( know ) them.