根据句意和所给的中文提示,写出句子中的单词。
Something must be done ____________(阻止)the good land from being blow away by the strong wind.
Today is my mother’s_____________(四十)birthday.
I was ______________(失望)because my best friend didn’t show up at my birthday party.
Remember to lock your bike. Don’t have it ____________(偷)
The man is seriously injured, he needs _____________(医学)treatment at once.