Read the passage and underline the Yes/No questions. Then write them in reported questions.

A tour guide is taking a group of tourists to visit Tonle Sap Lake in Cambodia. The guide said to them: “Is it your first time here?” Some said yes and some said no. Olivia asked the guide: “Do the people here live on fishing?”. He said most of them did. Then Mark said: “Do their children go to school on land?”. “Yes, they do,” said the guide.

→ The guide asked them _______.