根据下列句子的意思及所给的汉语提示，写出空缺处单词、固定短语或固定搭配的正确形式。

1. He didn't succeed until he tried the ______ (十二) time.

2. Tony fell off his bike and hurt himself ______ (严重地).

3. "I've ______ (长大). I can help with some housework." she said to her parents.

4. Please ______ (关掉) the lights before you leave.

5. I don't want to make a wrong ______ (决定) and regret it later.