For each sentence, choose the action that happened first

James was riding a bike when he saw his best friend crossing the street.

• he rode a bike
• he saw his best friend

When she came to the dancefloor, her favourite song had already finished.

• she came to the dancefloor
• the song finished

We were having a great party when suddenly the lights went off.

• we had a party
• the lights went off

I boarded a plane and realized I'd left my earphones in the airport lounge.

• I boarded a plane
• I left my earphones

I saw those trainers on sale and bought them immediately.

• I saw them
• I bought them

They had been playing football for 2 hours when they realised that they have missed a lecture.

• they played football
• they realised

He had been talking to the woman for 30 minutes when he realised he hadn't introduced himself.

• he talked for 30
• he didn't introduce himself