0.

My last birthday my sister gave / did give me a box of chocolates.

1.

Last New Year's Eve we did go / went to New York.

2.

I eated/ ate a lot last Christmas.

3.

We did buy / bought my mom a bouquet of flowers.

4.

My parents worked / drank tequila on Independence Day.

5.

Emma slept / ran well last night so she rested a lot.