Past simple or perfect?

When I met Jim at the station, we ___ for a few minutes.

• chatted

• had chatted

I was late, so when I arrived at the station, the train ___ .

• already left

• had already left

I wasn´t hungry because I ___ dinner.

• just had

• had just had

I ___ so tired, so I didn´t go to the match with them.

• was

• had been

I ___ a wallet on my way to work but there was no money in it.

• found

• had found

I noticed that someone ___ a message on my answering machine.

• left

• had left

As we were standing on the platform, it ___ to rain.

• started

• had started

I decided to read the book the teacher ___ us in our first English lesson.

• recommended

• had recommended

When his book came out, it ___ an international bestseller.

• became

• had become

I ___ the Bohemian Rhapsody last week.

• finally saw

• had finally seen