Relative Pronouns

......... is that sitting over there in the corner?

I'm looking at the photograph ......... you sent me with your letter.

The person in the house next to mine knows someone ......... met the Queen.

One person who made ..... a career based on the sea was the authoress Rachel Carson.

Deep-sea divers wear wetsuits to protect ..... under the water.

Divers use external air supplies to enable ..... to breathe under water.

Rachel Carson's life was marked with conservation efforts that we ..... can learn from.

Rachel Carson put on a diver's helmet and explored the reefs of the Florida Keys for ......

The bends occurs when divers raise ..... to the surface too quickly.

A diver must supply ..... with a mixture of oxygen and different gasses.