7.write the missing question words in 1-8.
where does have is
do what why when
how
are
1 hour
reliable are the wists you use?
exactly do psychiatrists do?
n
you done any of these exercises?
you ever get impatient
1
are you from?
are you changing jobs!
they living in thailand now?
he expect to be later
is michaelstudy at the moment!
long have you lived hered
were you last in london!
hesly annoy
-​

The history of smartphones shows how a person’s life is changing. In the 1980s, people wanted to carry a means of communication in their pockets, but no more. Only children played in those days, and their cell phone was unavailable. The organizer was a paper notebook, and later a separate electronic device like a calculator. Listening to music on the street allowed cassette player. Well, there was no talk about videos and videos - they were viewed only indoors, for this the video recorder was used. In short, it is completely incomprehensible why Nokia wanted to combine the functions of the phone and the personal computer. But, as it turned out, this decision was right. Вот история и прочее надеюсь

3) Физические свойства алюминия

Алюминий — мягкий, легкий, серебристо-белый металл с высокой тепло- и электропроводностью. Температура плавления 660°C. По распространенности в земной коре алюминий занимает 3-е место после кислорода и кремния среди всех атомов и 1-е место — среди металлов.

4)Из 4-5 тонн бокситов получается 2 тонны глинозема, из которого производят 1 тонну алюминия. В мире существуют несколько видов алюминиевых руд, но основным сырьем для производства этого металла являются именно бокситы. Это горная порода, состоящая, в основном, из оксида алюминия с примесью других минералов