1. The boy began to draw a picture on the sand at three.
=> The boy has ____________________________________________.
2. This is the first time I have been to Ha Long Bay.
=> I have _______________________________________________.
3. Traveling around the city in a day is impossible.
=> It is ____________________________________________________.
4. “Do many tourists visit Phong Nha Cave every year, Lan?” Mai asked.
=> Mai asked Lan __________________________________________.
5. The boy began to draw a picture on the sand at three.
=> The boy has ____________________________________________.