英语首字母填空Debbie was really u___ that hadn't passed the first exam.

英语首字母填空Debbie was really u___ that hadn't passed the first exam.
2.He wrapped the blanket round him as p_____ against the cold.
3.The number of workers in this company d_____ from 700 to 500this year.
4.You use "d_____" to describe a time or event that is very far away in the future or in the past.
5.The students are r____ not to make so much noise when they do experiment.