根据括号里所给的汉语写出英语单词。

小题1:The boy is too young to look after __________(他自己).

小题2:Our __________ (生活）conditions are getting better and better.

小题3:His father __________(教）him to swim when he was young.

小题4:Don't be afraid of making ___________ (错误）when you speak English.

小题5:__________ (数千）of tourists visited Mount Fanjing on May 1st.

决策就是从两个以上的备选方案中选择一个行动方案的过程。