2. This is Jane. He's French, but he isn't from Paris.
3. This is Frieda. She's from Rome, but she isn't Italian.
4. Look at the switch. It's down, but the power isn't on.
5. These are the wrong items. They aren't bolts. They're screws.
6. What's this tool called? What are* these called?
* возможно What're можно написать, но я такого сокращения в текстах не встречал, так что лучше оставить как есть.