Past Perfect - Spot the mistake

Help

While I was looking for my phone, I realised I had left it in the taxi.

Correct.

When I woke up, I discovered that I set my alarm for the wrong time.

When I woke up, I discovered that I had set my alarm for the wrong time.

While I presented my report, I noticed that I forgot to include a crucial detail.

While I was presenting my report, I noticed that I had forgotten to include a crucial detail.

Unlock this slideshow and over 4 million more with Baamboozle+

Try slideshows