The new bridge over the river is two kilometers long.为什么kilometer要加s,而且还要这种顺序two kilometers long

There are b___ a new bridge over the river We can see a new bridge over the river. they have built a new bridge over the river改为被动语态A new bridge _____ _____ _____ by them over the river. The workers will build a new bridge over the river next year.的被动语态 The government will build a new bridge over the river 改为被动语态 A new bridge _________ (build) over the river last year.填空 they are building a new bridge over the river改写成被动语态 We built a new bridge over the river last year 如何改被动句? There will be a new bridge over the river.(改为一般疑问句） Another new bridge __ __ __ over the Ganjiang River.翻译：赣江上又在建一座新桥 There____{be]a new bridge over the Changjiang River in several years Another new bridge __ __ __ over the Ganjiang River.翻译：赣江上又在建一座新桥 the new bridge over the railroad tracks eliminated the danger in crossing.请问这句话的意思, walk across the bridge还是walk over the bridge?walk across the bridge正确还是walk over the bridge正确? I think a new bridge _____ over the river near our village .The old one is broken. The bridge is over the rive over在这里是什么意思 A new bridge was built over the Changjiang River in Wuhan recently为什么over Changjiang River ,不用over the Changjiang River.over 后可直接跟名词吗,不用冠词吗? 英语翻译1we buite a new bridge over the river last year2Mr white teaches in our school3the pupils asked the teacher to tell a story