1 . What is known to us all is that Australia ________ (是……的故乡) kangaroos.(根据汉语提示完成句子)

2 . These terraces were built by the local Zhuang and Yao people, ________ whom Guangxi is home. （用适当的词填空）

3 . These terraces were built by the local Zhuang and Yao people,________Guangxi is home.（是……的家园）(根据汉语提示完成句子）

4 . These terraces were built by the local Zhuang and Yao people,________Guangxi is home. 龙脊梯田的建造者是壮族和瑶族人民，广西是他们的家园。