Если отвечать по учебнику, то можно ответить одним предложением, которое я выделила
У вас в учебнике есть этот текст: Hundreds of years ago, artists made the camera obscura. It was a small, dark room with a hole in one wall. Light went through the hole and made a picture appear on the opposite wall. A modern camera works in the same way.
( Сотни лет назад, художники сделали камеру обскура. Это была маленькая, темная комната с отверстием в одной стене. Свет проходил через отверстие и картинка появлялась на противоположной стены . Современные камеры работают по такому же принципу) .Если нужно подробнее , то я прикрепила приложение.
I (was listening) to the radio while Mary (was cooking) dinner.
(Did you buy) this book yesterday?
Last Friday Jill (went) home early because she (wanted) to see a film.
When (does your brother usually get) home in the evening?
Jane always (brings) us a nice present.
What (are those people doing) in the middle of the road?
(Have you read) this book?
While Fred (was sleeping), Judy (was watching) TV.
When I (was) young, I (thought) Mary (was) nice — but now I (think) she’s fantastic.
Jill (was walking) home when she (saw) her husband’s car outside the cinema.
Look there! Sue and Tim (are running) to school.
Jack’s father (does not work) in London — he (does not speak) English.
Joe (bought) a car yesterday.
Their father often (goes) to rock concerts.
While you (were sleeping), mother (arrived).
Объяснение:Вот ответы.
2. Everyone needs school to get a set of knowledge that will be useful to us in our later life. Of course, it may seem that school knowledge gets forgotten over time, but this is not true. Every day we are confronted with issues that are somehow connected with the school curriculum.