Question

【题目】___ from other continents for millions of years, Australia has many plants and animals not found in any other country in the world.

A.Being separated

B.Having separated

C.Having been separated

D.To be separated

Answer 1

【答案】C

【解析】由句中的for millions of years可知，此处应该用现在分词的完成时形式，又因为separate和Australia之间是动宾关系，故用现在分词的被动语态形式。separate...from...表示“把某物和某物分开”之意。