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можете решить тесты
1.When I last talked to him, he English.
A) studies
B) study
C) was studying
D) studied

2.I met her at yesterday’s party, but I her by sight for yearsbefore that.
A) had known
B) have known
C) will have known
D) had been known

3.By 2010, scientists surely a cure for cancer.
A) are discovering
B) have been discovered
C) will have discovered
D) had discovered

4.Since the day he ill he a lot of reading.
A) was / had done
B) is / has done
C) was / has done
D) is / has been done

5.A: What’s the time?
B: I’m sorry I . My watch .
A) can’t tell / stopped
B) didn’t know / stopped
C) don’t know / has stopped
D) don’t know / had stopped

6.He in the library every night for the last two months.
A) would be studying
B) will have studied
C) has been studied
D) has been studying

7.Last Sunday we out of the house where we for five years.
A) had moved / lived
B) have moved / had lived
C) moved / had lived
D) will move / have lived

8.We spent hours talking about what we since we left school.
A) have done
B) had been doing
C) have been doing
D) were doing

9.They married but in the end they changed their mind.
A) are going to get
B) will have been
C) were going to get
D) had been

10.Jim: Would you like me to give Mike a message for you?
Bill: Oh, I don’t want to trouble you.A: It’s no trouble, really. I Mike tomorrow anyway.
A) am seeing
B) saw
C) have seen
D) would see

11.When I counted my change I realized they me $ 3 too much.
A) gave
B) had given
C) have given
D) had been given

12.When he’d counted his change he it in his pocket.
A) was put
B) put
C) had put
D) has put

13.As soon as she out of bed she got dressed.
A) had got
B) gets
C) has got
D) would get

14.In a fortnight’s time they their exams.
A) have taken
B) will have taken
C) will have been taken
D) had taken

15.They were very rude to us. We there again.
A) won’t go
B) hadn’t gone
C) didn’t go
D) wouldn’t go

16.In about forty years’ time we’ll probably on pills.
A) be living
B) have been living
C) have been lived
D) have lived

17.A: Why have you set your alarm clock to go off at 5.30?B: Because I then. I have to catch the early train.
A) get up
B) was going to get up
C) am going to get up
D) have got

18.A: I’ve planned my future for the next five years.
B: That is very clever of you. What when you retire?
A) will you do
B) are you going to do
C) have done
D) do you do

19.You’ll feel a lot better after you a rest.
A) had
B) have had
C) will have
D) had had

20.Next August, while you for your exams, I on aMediterranean beach.
A) are preparing / will be
B) were preparing / would be
C) prepare / will be
D) were preparing / was

@Grammar_tests​

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Ответ:
PHVRVOH
PHVRVOH
22.07.2022 13:46
Динамика численности - это изменения в численности населения за определенный период. если брать период 19 -20 веков, то медленными темпами росло население  европы, с америки, австралии, а быстрыми темпами увеличивалось  население южной америки, африки (особенно), азии. чтобы рассчитать, нужны конкретные стартовые цифры. могу предложить формулу для расчета. весь мир - 7 млрд. - это 100%. численность населения с.америки -  528,7 мил. - х%. составляем пропорцию х = 528.7 млн. х 100/ 7 млрд. = доля нселения . америки. и так каждый регион.  объяснение: быстрыми темпами растет население в африке, ю.америке и азии. т.к. это беднейшие регионы мира, где население в основной своей массе занято в с\х на обработке почвы, а это ручной труд и особенно дешевая рабочая сила - дети. поэтому рождаемость у них большая. + в этих регионах религия запрещает/не рекомендует планирование или прерывание беременности.в европе. с. америке,австралии население растет медленно, т.к. там рождаемость маленькая (зачем иметь много детей. ведь их надо: кормить, учить, содержать). проще иметь семью без детей или, в крайнем случае, с одним ребенком. да и вообще, богатые люди предпочитают сразу получить образование,    сделать карьеру и только потом заводить ребенка а это уже к 30 . как следствие. организм уже либо не хочет, либо может, но только 1-2 детей
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Ответ:
ЗаяцЯ2
ЗаяцЯ2
20.02.2022 22:43
Born July 21, 1934 in Moscow, graduated from the Faculty of Journalism, Moscow State University, he worked in the press, in the apparatus of the CPSU Central Committee. Published since the late 1950's. Member of the USSR JV (1966). The first science fiction publication - the story "Adventures on the seabed" (1960).

Fame Veltistov, the lead author of Soviet children's science fiction, brought a series of works about the robot boy, copies of the schoolboy Syroezhkin - "The electronics - the boy from the suitcase. The Fantasy Story (1964), Rassy the elusive friend (1970, 1971), The Winner of the Impossible (1975), The New Adventures of Electronics (1984, refining 1988); on the first two stories a popular television movie was shot.

Among other Veltistov's works related to science fiction is the tale of the impasse in which the fabulous "fulfillment of desires", "Gum-Gam", 1970 (screened in 1985); and a collection of tales of tales - "One Million and One Day Vacation" (1979), "Classroom and extra-curricular adventures of extraordinary first-graders" (1985). To Veltistov's science fiction "for adults" are: a story about a near future - "A Sip of the Sun. Notes of the programmer Mart Snegov "(1967), which tells about the arrival in the solar system of an alien starfleet, controlled by a computer, as well as the novel" Nocturne of Emptiness "(1988), describing the conspiracy of the imperialists threatening humanity with a climate war; previously published together with the previous story in one volume - a collection of "Nocturne emptiness. The Shot of the Sun "(1982)
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