Read the passage below and decide which option A, B or C best fits each space. Today, computer companies sell many different programs for computers. First, there are programs for doing math problems. (26) ________, there are programs for scientific studies. Third, some programs are like fancy typewriters. They are often used by writers and business people. Other (27) ________ are made for courses in schools and universities. Finally, there are programs for fun. They include word games and puzzles for children and adults.
There are many wonderful new computer programs, but there (28) ________ other reasons to like computers. Some people like the way computers hum and sing (29) ________ they are working. It is a happy sound, like the sounds of toys and childhood. Computers also have lights and pretty pictures. In addition, computers even seem to have personalities. That may sound strange, but computers seem to have feelings. Sometimes they seem happy, sometimes they seem angry. It is interesting (30) ________ that they are like people.

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