Местоимение к британскому слову planes

They

Образцы употребления этого местоимения в предложениях:

They are already flying over the Black Sea and are planning to land on the base. They fly with many passengers aboard and they fly to their destination. They have been training in various exercises for a long time to fly well. They fly across the seas and oceans to deliver passengers. They fly to help injured people. They fly to provide the necessary food and medical care. They fly to help shipwrecked ships. They fly to scatter leaflets.