Сделать предложения отрицательными: 1. we are studenst. 2. the children play on the playground. 3. tony plays football well. заранее, большое .

1We aren't students.
2The children don't play on the playground.
3Tony doesn't play football well.

TheyGerman courses these three months.

are attending

Jack...always at the lesson!

is chewing

My friends...around the city for many hours and were tired.

had been walking

Physics is asas Chemistry.

difficult

I would rather porridge for breakfast.

have

Mr.Brown stoppedat the age of 60.

working

He will never forgetLondon for the first time.

visiting

It was kind of you us to the party.

to invite

You speak loudly at the library. It's forbidden.

mustn't

It be Bill's car. He sold his car last month.

can't

This news on TV recently.

has been announced

Ted said that his project by next Monday.

would have been finished

If she had been more attentive, she... so many mistakes in the test.

wouldn't have made

I would have helped you to translate the article if I German.

had known

Steve couldn't use his printer yesterday. It the whole day.

was being fixed

Did you remember seats for the theatre performance?

to book

I wish you more polite and patient.

were

Susan wondered if Helen her exam successfully the previous week.

had passed

We won't start until everyone

arrives

Let's take part in this contest, ?

shall we

Объяснение:

Long ago, artists made the camera obscura. The camera obscura was a smail. dark room with ahole in one wall. In this room light went throuhg the hole and apicture appeared on the wall opposite the hole.

2) Nowadays, when we press the button on top of a modern camera, the shutter opens. The light goes through the lens and the film records the picture

Давным-давно художники сделали камеру-обскуру. Камера-обскура была маленькой, темная комната с дырой в одной стене. В этой комнате свет проникал через дыру, и на стене напротив дыры появился рисунок.

В настоящее время, когда мы нажимаем кнопку поверх современной камеры, открывается затвор. Свет проходит через объектив и пленка записывает картину