1、必修四Unitworkbook 答案sunburnt,ridof,expand,circulate,would rather,struggle,expert,satisfied with,equip,crop,thanks to2P12 Ex.231 statistics,globe 2 super,nationalities3 Hunger,disease4 Vietnam,occupations5 freedom,exportedAnswer key for Exercise 2 on page 12:4P12 Ex.35decade,struggle,expanding,Equipped
2、output,grain,crops,battles,disturbing6P49 Ex.17大家应该也有点累了,稍作休息大家有疑问的,可以询问和交流大家有疑问的,可以询问和交流大家有疑问的,可以询问和交流大家有疑问的,可以询问和交流8 battlecirculatecommentconfusediscoverequipexpand exportfocusproduceregretstrugglesum circulationconfusiondiscoveryequipmentexpansionproduction strugglesum91.circulated2.focus export mented regret4.struggled confusing5.equip10P49 Ex.211 chemicalspestsbacteriaproductionsoildiscoverieschemicalsmineralsnutritionrootfocus12P49 Ex.313