The police officer was         of not trying to prevent the crime from happening.

The police haven’t ______ any new evidence, which really let the public down.

I’m going to see what Dad is________. Two hours is a long time to take over a coffee.

We are often _____ by the doctors to eat more healthy food and take plenty of physical exercise.

Research has been limited to ____ production profits, rather than ____ that GM foods are safe.