1.Where do David's grandparents live?
They live in a tiny town Bedford, Bedfordshire.
2.What does his grandfather do?
He is an engineer.
3.What makes the shower in the house different?
Their shower uses rain water collected from the roof and heated by heat from the sun.
4.What does the grandfather use instead of door keys?
He uses fingerprint recognition technology.(технологию распознавания отпечатков пальцев)
5.What happens when it is hot outside?
The shutters (ставни/жалюзи) close automatically.
6.Why does David like visiting his grandparents?
David likes visiting his grandparents because he also likes technology.