_________ from other continents for millions of years, Australia has many plants and animals not found in any other country in the world.
A．Being separatedB．Having separated
C．Having been separatedD．To be separated
C
考查非謂語動(dòng)詞做狀語。題中分詞的動(dòng)作發(fā)生在謂語動(dòng)詞之前，且與主語之間是被動(dòng)關(guān)系，所以用現(xiàn)在分詞完成式的被動(dòng)式。所以選C 。
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