As the farm grew bigger, the owners decided to ...... it.

I believe the locking ...... failed to do its job, so now we're standing outside the house.

Some students always give their teachers ...... answers. Then, the teacher doesn't really know whether they have understood the concepts or if they've learnt everything by heart.

Milk production has been fully ...... in our plant and human workers are used as supervisors only.

A ...... error was responsible for the power drain last night.