Это задание на знание лексики английского языка, где нужно вставить подходящие по смыслу слова в предложения.
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Many experts think that around 20,000 years ago wolves and humans started to live side by side. Over time some wild animals became tamed. For example, wolves chased away dangerous animals. They ate food that humans
A CARRY away.
Dogs B NOT BECOME humans' friends by accident.
One of the reasons is that dogs are C CLEVER .
They can D LEARN .
Most dogs learn new behaviour in just four tries. If you have a dog, think of a
w trick and try to teach it to do it. Keep the instruction enjoyable for the best
ults. When your dog E THROW out a command, offer a small
at or say "Good dog!"