40. In 1908, the president of an automobile company put on an
exciting demonstration. He _____ the parts of three different
cars. Then the cars were put back together. This showed that
cars could be built with parts that were interchangeable.
_____ each part could fit only the car it was made for.
(A) melted… Above (B) jumbled … Previously
(C) waited … Beneath (D) froze … Beside