精选优质文档-倾情为你奉上Unit 1 A land of diversity一、单句语法填空1His speech stressed the importance of _ (reform)to educate.2I was in halfway when it suddenly _ (occur)to me that I had left my ticket home.3What _ (percent)of the population in China are farmers?4Undergraduates _ (hire)since 2001 to assist in creating an environmentally friendly campus.5Over the past three years，there has been a big rise in _ (immigrate)to the USA.6A new law has been br
