1) be quiet! the performance has already begun 2) i was going to leave the room when i just heard the telephone ring. 3) he has just heard her sing. 4) they have already divided the work. 5) my cousin has joined greenpeace recently.
Ответ дал: Гость
isn't it
aren't you
did they
wasn't it
won't she
were they
Ответ дал: Гость
1c
2a
3c
4c
5b
6b
7b,c
8c
9b
10c
11b
12b
13c
14d
15c
16a
17b
18d
19d
20c
21c
Ответ дал: Гость
wild elephants have strong family ties. the females and young are social, living in groups under the leadership of an older female or matriarch. adult males are solitary, although they stay in contact with the females over great distances, using sounds well below the range of human hearing. family groups communicate with each other using these low-frequency vibrations. it is an eerie sight to see several groups converging on a waterhole from miles apart, apparently by some prearranged signal, when human observers have heard nothing. the natural lifespan of an elephant, about 70 years, is comparable to a human's. elephants reach breeding age at about 15 years of age. females generally give birth to one 200-pound baby after a 22-month pregnancy.
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