ForthreequartersofitsspanonEarth,lifeevolvedalmost_______asmicroorganisms.
ApreciselyBinstantlyCinitiallyDexclusively
正确答案:D选[D]。所给四个副词的意思分别是:[A]准确地;[B]立刻,马上;[C]首要地;[D]唯一地,单独地。四个词只有exclusively才可以被almost修饰,而且也最符合句意。

ForthreequartersofitsspanonEarth,lifeevolvedalmost_______asmicroorganisms.
ApreciselyBinstantlyCinitiallyDexclusively
正确答案:D