43 Visitors learn about a country's history thanks to the local cultural attractions. (TEACH)
the local cultural attractions teach visitors a country's history
44 Jack's dad worked as a tour guide in the Philippines. He met Jack's mum, then. (WHEN)
Jack's dad met his mum when he was working as a tour guide in the Philippines
45 Nelson was touring Mai Châu Valley. It suddenly started to rain. (WHILE)
It suddenly started to rain while Nelson was touring Mai Châu Valley
46 Jason bought some beautiful handmade items in Đồng Xuân Market during his holiday in Hanoi.
(STAYING)
When Jason was staying in Hanoi, he  bought some beautiful handmade items in Đồng Xuân Market