Chemistry Lab results - acids and bases?

You will be given 7 unknown solutions ? 4 are aqueous and 3 are solids.  Your job is to determine which substance is which.
The seven substances will be one of the following:
Ammonium hydroxide (aq)
Ammonia (aq)
Nitric acid (aq)
Acetic acid (aq)
Potassium Iodide (s)
Potassium Carbonate (s)
Ammonium Chloride (s)

So, we did experiments, and this is what we got:

Solution A:
Litmus: blue
Range pH paper: dark purple, pH 11
Zinc: nothing

Solution B:
Litmus: red
Range pH paper: deep orange, pH 3-4
Zinc: nothing

Solution C:
Litmus: red
Range pH paper: deep red, pH 1
Zinc: bubbles

Solution D:
Litmus: blue
Range pH paper: deep blue, pH 11
Zinc: nothing

Solution E:
Litmus: blue
Range pH paper: very dark blue, pH 12
Zinc: nothing

Solution F:
Litmus: No change
Range pH paper: light orange, pH 6
Zinc: nothing

Solution G:
Litmus: No change
Range pH paper: yellow, pH 7
Zinc: nothing

So, what now? The teacher gave no hints, due tomorrow! Help!