Simple Past or Past Perfect?

I ___ of going to Italy before she suggested it. HADN'T THOUGHT or DIDN'T THINK

My dog ripped my dress! I was so upset, I ___ it! HAD JUST BOUGHT or JUST BOUGHT

My dad ___ to the supermarket this morning to buy some milk. HAD GONE or WENT

We ___ the test when she told us there wasn't any time left! DIDN'T EVEN START or HADN'T EVEN STARTED

As he ___ his homework he was allowed to eat with us. HAD DONE or DID

I can't believe she ___ my sandwich! ATE OR HAD EATEN

I ___ for my exam all morning so I was really upset when I didn't do well. REVISED or HADN'T REVISED

What ___ yesterday? HAD YOU DONE or DID YOU DO

I couldn't believe she ___ my sandwich! ATE OR HAD EATEN

After we ___ all our water, we realised that there wasn't any left. DRANK or HAD DRUNK