【推荐2】Last Monday, some Australian students came to our school for a visit. They     1    (show) to visit various optional courses. One of our teachers taught them something about calligraphy. As a volunteer, I explained     2     English when necessary. They were impressed by the amazing Chinese art, and some of them even tried writing some characters successfully.     3     (remember) the enjoyable moment, we took photos together and this was really a memorable and rewarding event.