S4A Relative Clauses

My aunty, _______ visits every summer, is a marine biologist.

Coral reefs, ________ are like under water cities, are an importnat habitat for millions of animals.

The dugong, _________ is a kind of mammal, is sometimes called a sea cow.

My cousin Lisa, _________ is a scub diving instructor, knows a lot about coral reefs.

Alice, _______ who's a marine biologist, wants to write a research paper on dugongs.

Titanic, ________ sank 1912, is now an underwater shelter for marine life.

My uncle, ________ works at the aquarium, showed us some manta rays.

Whale sharks, ________ are shy and gentle, are the worlds largest fish.

The Narwhal, ________ is a type of whale, has a long, straight tusk.