联合国教科文组织提出生态城市的概念是在（）
A、1971年A
暂无解析
You’dbetterletmeknowassoonasthereisa(n)____positioninthebranchoffice.
Henoticedthehelicopterhoveringoverthefield.Thentohisastonishment,hesawaropeladder_____outandthreemenclimbingdownit.
Allofuswouldhaveenjoyedthepartymuchmoreifthere_____quitesuchacrowdofpeoplethere.
Heresented_____towait.Heexpectedtheminister_____himatonce.
PartIVTranslation
Bymakingvehicleslighterinweightaluminumhasgreatlyreducedtheamountoffuelneededtomovethem,(PassageTwo)
