There are more than forty-five coffee-exporting countries - all of ... use different classification systems

Language ........ well be programmed into the brain

... from the obvious health risks, smoking is an ugly, unpleasant habit

However, unlike these situations, ..... are generally positive and easier to deal with, sitting in a train that is running late, ..... stuck in a traffic jam or working to a tight deadline are much harder to manage and control.

Most energy sources on Earth are forms of indirect solar energy,... we usually don’t think of them in that way.

In ........ words, language came about as a result of an evolutionary change in our brains at some stage.

One recent theory is that human beings have evolved in ........ a way that we are programmed for language from the moment of birth.

The research shows, if ......... else, that language is a social activity, not something invented in isolation.

Yet stress is not negative and without ..... we would not enjoy some of the highpoints in life ..... as the anticipation before a date or the tension leading up to an important match.

A cup of coffee, like any ... experience, can be enriched by selection and consciousness.

The truth ........ ,nobody really knows how language first began.

Patients are often unwilling to admit to stress but it is important that symptoms ..... identified in order to avoid unnecessary suffering.