Let's solve this crossword puzzle together!
**Across**
4. When we heard the strange noise we got so **scared**. (C _ R _ D)
5. Bill looks **miserable**. What's wrong with him? (M _ S _ B _ E)
6. Penny got very **stressed** when she got the bad news. ( _ R _ S _ E _)
7. He worked so hard last week that he feels very **tired** now. (T _ R _ D)
**Down**
1. Mark was **puzzled**. He didn't know what to do. (P _ Z _ L _ D)
2. Mary feels **nervous** when she takes an exam. (N _ R _ O _ S)
3. This was my worst holiday ever. I was so **upset**. (U _ S _ T)
Therefore, the filled crossword puzzle looks like this:
```
1 p
z
2 n
4 c r d
5 m s b e
6 r r
7 r d
```