根据句意及首字母提示完成单词。 
It's too hot,  we need to drink more w____. 
Mr. Black looks u____ ,  but he is a really good man. 
—How is the salad?  —Very d____.
—Where is the post office?   —It's at the c____ of the street. 
The movie Avatar is great.  We d____to see it again.