Australia is the only continent that contains one country. It is the worlds______largest country. However, as a continent, it is the smallest onE.
A.fourth
B.fifth
C.sixth
D.seventh

A.A.fourth
B.fifth
C.sixth
D.seventh

【参考答案】

C
澳大利亚是世界第六大国家；它也是世界上唯一只有一个国家的大洲。