根据句意和汉语提示写出单词，使句子意思通顺、完整。
Justin’s mobile phone was _________(偷)from the drawer.
The boy likes to know more and he is always curious about the ______(未知的) world.
Sadly, the prison__________(人口) has increased in recent years.
I had to stay at home , because the rain was raining___________(猛力地).
I’d like to book a __________(单个的)room, please!