Read the following passage carefully and then choose the best option to fit each numbered blank (from 26 to 30).

What will life be like in the future? Different people have (26) answers to this question; some are pessimistic while others optimistic.Things will be much worse than they are nowadays, pessimists say. (27) whole world will experience a period of economic depression. Many large corporations will be wiped out and millions of jobs will be lost. The security of the earth will be threatened by terrorism as terrorist groups will become more powerful and more dangerous. (28)             , optimists believe that life will be far better than it is today. We will be living in a much cleaner environment, breathing fresher air and eating healthier foods. We will also be better looked (29)            by a more modern medical system. Domestic chores will no longer be a burden thanks to the (30)             of labour-saving devices.

Different people have (26)                                                                                                        answers to this question; some are pessimistic while others optimistic.