Poll is an example of a severely disabled person who has become______at many survival skills.

As the pressure____, the liquid rock is forced up through channels in the resistant rock to the earth’s surface.

The first step in the study of any language is observing and ____ precisely what happens when native speakers speak it.

It happened in front of a fruit and vegetable ____in my neighborhood.

He was almost asleep, ____ with all this hard work.

Perhaps the customer has ____ his monthly statement and not paid the bill.

The ____ populated area was a breeding place forinfectious diseases.

Due to the bad weather the plane was ____ for two hours.

We can ____ the two islands with a bridge.

The present situation forced us to ____ this policy.