Past Simple vs Past Perfect

When I _____ (get) to the airport, I ______ (discover) I ______ (forget) my passport.

I ______ (go) to the library, then I ______(buy) some milk and _____ (go) home.

We ______ (get) home to find that someone _____ (break) into the house.

It ______(not / rain) all summer, so the grass _____ (be) completely dead.

After arriving home, I _____ (realise) I _______ (not / buy) any milk.

William _____ (feel) ill last night because he ____ (eat) too many cakes.

First, she _____ (tidy) the flat, then she _______(sit) down and ____ (have) a cup of coffee.

When Julie _____ (got) home from her holiday, her flat _____ (be) a mess. John ____(have) a party.

When I opened the curtains, the sun was shining but the ground was white. It _______ (snow) during the night.

Rose ______ (know) her husband for three years before they _______ (get) married.