E9- UNIT 10- Non-defining relative clauses

Researchers, ________ are developing new technologies for renewable energy, are making a positive impact.

• that
• when
• whom
• who

My physics teacher, ________ I always admire, has a vast knowledge about outer space.

• whom
• whose
• which
• that

The atmosphere, ________ protects us from harmful radiation, is essential for life on Earth.

• where
• that
• whom
• which

Will Smith, ________ recent movies have been serious, was once considered a comic actor.

• whose
• which
• who

She captured a photo of the bird ________ nested in the tree outside her window.

• whom
• whose
• that
• who

Ms. Jane, ________ studies ocean currents, is presenting her findings today.

• that
• whom
• who
• whose

The number of polar bears, _______natural habitat is the Arctic, is decreasing.

• that
• whose
• which
• who

The severe drought ________ occurred last summer ruined the corn crop.

• that
• which it
• it
• that it

What is the name of the hotel ________ you recommended I stay at when visiting Seoul?

• what
• whom
• that
• whose

The carnivores, ________ diet consists of meat, occupy the secondary level of the food chain.

• which
• who
• that
• whose