IV. Read the passage below then answer the questions. (2ps) Hung and Long are going on vacation this summer. First, they are going to visit Ha Long Bay for 2 days. They are going to stay with their uncle and aunt there. Next, they are going to visit their friends in Hanoi 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? ..…………...…………….……...…………….……...…………….…….....… 2. Where are they going to visit first? ..…………...…………….……...…………….……...…………….…….....… 3. What are they going to do in Hue? ..…………...…………….……...…………….……...…………….…….....… 4. How long are they going to stay in Ho Chi Minh City? ..…………...…………….……...…………….……...…………….…….....…