A scientist had been working in the canyon.
A. One day a scientist found a long, thin piece of silk at the bottom of the canyon, yet he had been working in the canyon.
B. One day a scientist found a long,thin piece of silk at the bottom of the canyon and he had been working there.
C. One day a scientist who had been working in the canyon found a long,thin piece of silk at the bottom of the canyon.
D. No one was ever able to overtake the fleeing phantom ; because it always seemed to disappear into thin air.
Select your answer:
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By the end of the year, they ________ their new house.
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