Hung and Long are going on vacation this summer. First, they are going to visit Ha Long for 2 days. They are going to stay with their Uncle and Aunt there. Next, they are going to visit their friends in Ha Noi for 3 days. They are going to visit Hoan Kiem Lake and Ho Chi Minh museum. Then they are going to visit Hue for 4 days. They are going to see the Citadel. After that, they are going to stay at a friend's house in Nha Trang for 3 days. Finally, they are going to visit Long's grandparents in Ho Chi Minh City for a week. 1. Are Hung and Long going on vacation this summer?