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题目
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Some scientists believe that there will be more robots in       years.
A.hundreds ofB.hundred of
C.two hundreds ofD.two hundreds

答案
A
解析

试题分析:句意为:一些科学家相信数百年后将会有更多的机器人。当hundred/thousand/million等词前有确切数字时,hundred/thousand/million等词后应不加“s”,且无of;当hundred/thousand/million等词前无确切数字时,hundred/thousand/million等词后加“s”,且有of。根据语境可知应选A。
核心考点
试题【Some scientists believe that there will be more robots in       years.A.hundreds】;主要考察你对钟点等知识点的理解。[详细]
举一反三
There      students in our school at that time.
A.were two thousandsB.are two thousand
C.are two thousand ofD.were two thousand

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Look! There are           people in the supermarket.
A.two thousands ofB.thousand of
C.two thousand ofD.thousands of

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—How many new words are there in _______lesson?
—There are only _______.
A.five; fifthB.fifth; five
C.the fifth; the fiveD.the fifth; five

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________  the students went to the gym to watch the football match.
A. Five hundred
B. Five hundreds of
C Five hundred of
D. Five hundreds
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The children have six ______ classes every weekday.
A.forty–five–minute
B.forty-five –minutes
C.forty–five minute’s
D.forty-five –minutes’

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