Choose the best answer.

It was the Spanish explorers ______ discovered the Galápagos Islands.

Choose the best answer.

When Khang went to Ninh Binh last year, he had a day tour to Hoa Lu, an ancient ______ of Vietnam.

Choose the best answer.

The Grand ______ is located in the state of Arizona, the United States.

Choose the best answer.

The project was done with the aim of raising public ______ of protecting the environment.

Find the mistake.

It was Quang that first put down the signs of security.

Choose the best answer.

It is on the Galápagos Islands, Ecuador that unique flightless sea birds such as ______ can be found.

Choose the best answer.

Cúc Phương National Park is home to several ______ species of animals and plants that don’t live anywhere else in Vietnam.

Find the mistake.