The food chain, __________ is a cycle of eating and being eaten, is very important for nature.

The pilot, __________ is very experienced, announced the landing time to all passengers.

The guidebook, __________ I read on the plane, gave great advice.

The Red Cross, __________ provides emergency aid around the world, has helped countless people in need.

My sister, __________ loves to travel, joined us on our vacation to Italy.

The app ____________ my friend recommended helped me learn new words quickly.

The Himalayas, __________ are located in Asia, have some of the tallest peaks on Earth.

I bought a souvenir from a shop ___________ sells handmade items.

The nature reserve, __________ has many walking paths, is a great place for nature lovers.

The woman __________ leads the campaign for clean water is very passionate about her cause.

I saw a traveller ___________ suitcase was lost at the airport.

The South Pole is a region __________ is not inhabited by humans, except for researchers.

The hotel __________ is near the beach is very popular with tourists.

I met a couple __________ travel stories were fascinating during the group tour.

He met a traveler __________ had been to many countries.

The sentences __________ native speakers use are sometimes too fast for me.

The forest, __________ is home to many species, must be protected from logging.

The person ____________ speaks slowly is very helpful when I'm learning a new language.

I found a restaurant ___________ serves delicious traditional meals.

I met a backpacker ___________ I shared stories with during my journey.

The Amazon River, that is in South America, has a huge rainforest around it.

The children whose visit the zoo learn about different animals and their habitats.

The coral reef, which is home to thousands of species, are an important marine ecosystem.

The community whose organises clean-up events is very active.

The Grand Canyon whose I visited is one of the seven natural wonders of the world.