an 80-meter-long bridge和an 80-meter long bridge哪个正确?另外,一小时的车程,五分钟步行之类的怎么说?这样子的搭配应该怎样用?

为什么是.an 80-meter-long bridge.an''s''为什么是.an 80-meter-long bridge.an''s'' and a''u''. There is ___bridge near our school.A.11-meter-long B.an 11-meter long C.an-11-meter-long an 80-meter-long bridge和an 80-meter long bridge哪个正确?另外,一小时的车程,五分钟步行之类的怎么说?这样子的搭配应该怎样用? the engineer told me that an ( )bridge would be built over the river the next year .A.800-meter long B.800-meters-long C.800-meter-long D.800 meter long 英语翻译An 800一meter一long bridge is being built over the river That’s __ 180-meter-long bridge,not __ 80-meter-long bridge.A.a; an B.an; a C.a; the D.the; a请详解,我认为选B 180=one hundred and eighty 首字母是元音不应该是用AN吗? 10 meters long可以说10-meter-long? 50-year-old与50 years old在语法中的区别It is said that the brige is_____.A eighty meters long B eighty-meters-longC eighty-meter-long D an eighty-meter-long正确答案是C 6000-meter-long还可以怎样表示 5-meter-long与5 meters long有区别吗 It's one meter long.请问这里的 long 词性? 英语定冠词用法There is _ 800-meter-long road behind _ hospital.A a/the B an/the 改选哪个 There is _80-meter-long bridge over _river 那两个空里边是填a或an或the还是不填 Over the river there is ____bridge.（ ）（ ）Over the river there is______ bridge.A.a 110—meter—long B.a 110—meters—longC.an 110—meter—long D.an 110—meters long为什么选A,我觉得应该选C吧!因为one hundred 的o不是元音 写一下单选的解析1.What _B_ useful book it is!I agree with you.It is ______ great fun reading it.A.an；a B.a；/ C.the；a D.the；/解析：2.How long is our classroom?It is __C__ .A.four-meter long B.four-meter-long C.four meters long D.fou The wall is___.It is a____wall.选择A.five meter long;five metres long B five- meters long;;five-metre long C fivemeters long;five-meter-long D five-meter long;five-metres-long 里面的哪个 A horse is tied to a five meter-long rope.Six meter away from the horse Please ______（not） open the door.It's too cold outside.应该填not吧,但我们老师说填don't,（ ）Over the river there is______ bridge.A.a 110—meter—long B.a 110—meters—longC.an 110—meter—long D.an 110—meters longShall we go