Ответ:

1 It's a great market where you can find all kinds of unusual things.

2 The heat comes from the light bulb in the middle, and it's reflected by this part, which you can see here.

3 I need something that I can put on my desk.

4. I wonder where the person whose stall it is can be?

5 The guy who you can see in the photo is a friend of mine.

6 I don't think the guy that I was talking to is going to sell a lot of battery chargers!