Setze das Simple Past (Vergangenheit) von 'to be' ein

I his friend last week. (Simple Past / Vergangenheit)

You late at school yesterday. (Simple Past / Vergangenheit)
She 14 last year. (Simple Past / Vergangenheit)
We in the park this morning. (Simple Past / Vergangenheit)
You very strict in 2011. (Simple Past / Vergangenheit)
They last week. (Simple Past / Vergangenheit)