There were different kinds of dinosaurs in the word in the past.A．hundr
题型：不详难度：来源：
There were different kinds of dinosaurs in the word in the past.| A．hundred of | B．two hundred of | C．hundreds of | D．two hundreds of |
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答案
| C |
解析
| 根据hundred的用法.可知hundred前无论加什么数词.其后不加s.而hundreds of前不加任何数词.故选C |
举一反三
Each of us has to write a ______ report every two weeks.
A. two-hundred-word B. two-hundreds-word C. two-hundred-words |
–We ‘ll be back for our school’s _____anniversary (周年) ceremony .
-I see. That means you’ll have a get-together with your classmates in ____years .| A．twelve; seven | B．twelfth; seven | C．twelve seventh | D．twelfth; seventh |
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--- how was your weekend?
---- Great! It was my grandfather’s _______ birthday. We enjoyed ourselves.| A．seventy | B．seventieth | C． the seventieth | D．seventeenth |
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| I"m 13 years old and my sister is 15 years old. So my sister is |
—How often do the students play sports?| A．Twice a day | B．Since last night | C．For two hours | D．A month ago |
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