Past Perfect/Movies

First, I wrote a letter. Second, I showed him the letter. ⇒ I showed him a letter that I

First, I wrote a letter. Second, I showed him the letter. ⇒ I wrote a letter and a few days later I______it to him.

Mum was angry because when I sat down to watch TV, I____(finish) my dinner.

I couldn't open the door because I____(forget) the keys at work

There were no cookies in the cookie jar. Somebody____(eat) them all.

I couldn't find the keys. Where (I/put) them?

We had already eaten when John___(come) home

Last year Juan _____(pass) all his exams.

I went to the library, then I (buy) some milk and went home.

I wanted to pay for dinner, but I __________ my wallet. 

• had forgotten

• forgot