根据句意及首字母提示填写单词，使句子意思完整。

1．Mr. Wang is very r          ．He has quite a lot of money．

2．Kangkang is feeling truly sad．He f        the English exam．

3．It's my dream to l            on the moon one day．

4．Shanghai is in the e          of China．It's a beautiful city．

5．I'm a s             here．Can you tell me the way to the railway station?