Составьте придаточные предложения, соединяя два простых, употребите нужный по смыслу союз. Last year I went to Paris. I stayed there for a week. It was a lovely experience. I will never forget it. I stayed with Louise. She is my French cousin. She introduced me to Pierre. His knowledge of Paris is amazing. I loved the boulevards. They are so wide and elegant. The Eiffel Tower is, of course, a great sight. It is famous all over the world. My favorite building, however, was the Invalides. It was built in the 17th century. At the end of the week I thanked Pierre. He had been very kind. Last year I went to Paris where I stayed for a week