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

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

I met a traveller ___________ told me about hidden places.

The local ranger, __________ takes care of the trails, told us some interesting facts.

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

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

The volcano, __________ can erupt violently, is formed by the movement of tectonic plates.

The locals __________ we talked to were very friendly and welcoming.

The summer, __________ most people take vacations, is the busiest travel season.

He met a traveler __________ had been to many countries.

I enjoyed the festival ___________ celebrated local traditions.

I found a restaurant ___________ serves delicious traditional meals.

Greta Thunberg, __________ is a Swedish environmental activist, is known worldwide for her climate protests.

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

The teacher __________ inspired me the most taught me in high school.

The restaurant ___________ serves local food was delicious.

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

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

The book ____________ pages are full of exercises is very useful for practice.

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

The photographer, that travels around the world, shared amazing stories with us.

The early morning, when the fog is still in the valley, are a magical time to visit.

The club who focuses on environmental issues is popular among teens.

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

The activities which are popular among young people includes sports and gaming.