Напишите 3 сложных предложения по английски

Вот три сложных предложения на английском языке: 1. Although the sun was setting behind the mountains, painting the sky with hues of orange and pink, the hikers continued on their trail, eager to reach the summit before nightfall. 2. The professor, who had spent years researching the effects of climate change on marine life, presented his findings at the conference, where he emphasized the urgent need for global policy changes to protect endangered species. 3. While she had always dreamed of traveling around the world, the unexpected challenges of planning such an adventure, including budgeting and securing time off from work, made her reconsider the feasibility of her plans.