Past Perfect

The accident happened because the woman______while driving.

• fall asleep

• had fallen asleep

Susie ______ much at the restaurant. Is she OK?

• didn't eat

• hadn't eaten

A man ________ to the crime thirty years earlier, but police later found that he was innocent.

• confessed

• had confessed

When we got to the venue, the concert _______ !

• started

• had started

Luckily, workers ________ he factory before the explosion happened.

• had left

• left

When I met him, I  _______ he was friendly.

• thought

• had thought