一个英语问题,The classroom building in our school is about()A,20—m

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一个英语问题,
The classroom building in our school is about()
A,20—metre high
B 20 metres high
C 20 metre high
D 20-metres high

B
如果有横杠应该是 20-metre-high,带横杠是合成形容词.
有资料可参考.
一、数词+名词(+形容词).例如：
① a five-year-old boy 一个五岁的男孩
② a four-hour trip 一次四小时的旅行
③ 100-metre dash 百米赛跑
④ an 800-metre-long bridge 一座八百米长的桥
学生学习时要注意：以上合成形容词中的名词(year,hour,metre,month等)必须用单数形式.如：不能写成a five-years-old boy,但是The boy is five years old.中的years是名词复数形式,它不是合成形容词.

一个英语问题,The classroom building in our school is about()A,20—m Our classroom is ___in the school building. there is a classroom building in our school.用how many 提问 This is our School Our classroom building isin the center of The building _______ the right is our classroom building.Wha Our classroom is in this building.What about them?这句话中错在哪里,怎 the building over there is a school ,()is our library This is not ____(we) classroom.____(our) is in Building A 一道首字母填空,This is our classroom building.In f__(85)____ of the In the front of the school s____ a high classroom building.首 there is a classroom building w（） thirty classrooms in our The building ____ in our school is for our teachers,though t