Most people think of computer as,very modern inventions, products of our new technological age. But actuallythe idea for computer (25) _________ worked out over two centuries ago by a man called Charles Babbage.
Babbagewas born in 1971 and grew up to be a brilliant mathematician. He drew up plans for severalcalculating machines (26) _________ he called "engines" . But despite the fact that’s he (27) ___________ buildingsome of these, he never finished any of them. Over the years people have argued whether his machineswould ever work. Recently, however, the Science Museum in London has finished building an engine based onone of Babbage's designs. (28) ________ has taken six years to complete and more than four thousand parts havebeen specially made. Whether it works or not, the machine will be on show at a special exhibition in the Science Museum to remind people of Babbage's work.
25. A. has B. was C. had D. is
26. A.whosse B.who C. these D. which
27. A. wanted B. made C. started D. missed
28. A. It B.He C.They D. One
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