Прочитай текст. Выбери из таблицы варианты правильных ответов ...

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Прочитай текст. Выбери из таблицы варианты правильных ответов соответствующие указанным номерам А1-А6 так, чтобы они грамматически соответствовали содержанию текста. Обведи выбранный вариант.
 
The keeping of pets (1) … (practice) from prehistoric times to the present. Pets (2) … (find) in nearly every culture and society. The initial steps toward domestication the dog (3) … (take) through the human practice of making pets of young wild animals. The dog could be of great use in hunting and guarding duties. By human beings, on the other hand, the dogs (4) … (provide) with a constant supply of food and warmth from the fire. There is indirect evidence that the dog (5) … (domesticate and keep) as a pet since Palaeolithic times, as can (6) … (see) from the paintings and carvings. In Mesopotamia, dogs that look remarkably like the present-day mastiff (7) … (show) participating in a lion hunt.  
 
A. 1
a) have been practiced
b) has been practiced
c) is practicing
d) are practicing
 
A. 2
a) finds
b) found
c) are found
d) find
 
A. 3
a) were taken
b) took
c) takes
d) take
 
A. 4
a) provides
b) was provided
c) provide
d) were provided
 
A. 5
a) domesticates and keeps
b) domesticated and kept
c) has been domesticated and kept
d) domesticate and keep
 
A. 6
a) saw
b) sees
c) seen
d) be seen
 
A. 7
a) shows
b) showed
c) is shown
d) are shown