首先句子是描述过去一个已经发生的状况，并且对现在有影响。第一个动词用完成时无误。而nearly 99% have vanished 所说的是 也就是these species of living creatures 中的99%遵循与主句时态一致也用完成时，也符合逻辑。
GMAT 语法题目Five hundred million different species of living cr
1个回答
相关问题
-
three-hundred-thirty-five-million 有语法错误吗?
-
Five million, five hundred and fifteen thousand, one hundred
-
forty-five million,five hundred and six thousand是多少
-
five hundred of和five hundreds of哪个正确
-
There are_______ different species of cats.
-
five hundreds of
-
one hundred five thousand million用阿拉伯数字怎么表示?
-
there are over 5 hundred million people lives in city
-
英语翻译1.ten million two hundred and twenty-four thousand five
-
问一道gmat 语法题目~prep08版191.For the last five years the Dutch ec