It will _______ hundreds of years to make robots think like a human.
A．spendB．costC．takeD．pay
C

試題分析：句意：使機器人像人類一樣思考還需要數(shù)百年的時間。四個選項都有花費的意思，但用法不同：A. spend 人作主語，spend---- on\doing花費時間做某事；B. cost 物作主語；C. take it作形式主語，句式：It takes sb st to do sth某人花費多少時間做某事；D. pay 人作主語，pay fo為-----付錢。結合語境故選C。      
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