Choose the word that has the underlined part pronounced differently from the others.

Choose the correct answer.

Write the correct form of verbs in the box. Use the past simple tense.

Read the text and choose the correct answer.

The Great Barrier Reef is one of the world's natural (15) _________. It is off the coast of Australia. Visitors swim in the sparkling waters around it. (16) _________ see amazing views of sea life.

A recent study found that 93% of the Great Barrier Reef has been (17) _________ by coral bleaching. Warm water temperatures are one cause of the bleaching. Pollution is another cause.

Reefs are important. They help protect communities near the coast (18) _________ flooding. They attract visitors and bring jobs to the area. Reefs are also a habitat for sea life.

It is possible for the Great Barrier Reef to (19) _________. But it is not easy. Groups in Australia are trying to help. They say people should use energy that doesn't warm the planet. Cutting (20) _________ fishing can also help. So can cleaning up pollution. Together, people can help save the Great Barrier Reef.