根据英文解释或汉语意思完成单词。每个单词的首字母已给出。

1. She has a good p_________(the way in which a language is pronounced). 

2. He answered the question d________(not in the same way).

3. I'm so t_______(wanting something to drink). Please give me some water.

4. What a c_________ (挑战) it is to this young player!

5. Linda didn't take part in the d________ (讨论) yesterday.