Задание

Fill in the gaps with the correct form of the words in brackets.

Dogs are thought to be intelligent creatures. They can remember approximately 165 words on average. This includes 1 ... \(VISION\) signals and other signs. A trained dog can learn even more words, up to 250.

Some studies demonstrate that dogs are as clever as a two-year-old child. This has been measured in a couple of ways. Firstly, a dog knows about the same number of words as a child of this age. 2 ... \(ADDITION\), there is a mirror test that is used to measure 3 ... \(AWARE\). Dogs never really understand their 4 ... \(REFLECT\) in the mirror. They think it’s another dog. Children are like this, too, until they’re about three.

Like many other animals, dogs sense some things far better than humans. They’re often 5 ... \(ABILITY\) to understand 6 ... \(SOCIETY\) situations faster, such as who is the most dominant animal in a pack.