36. Bufo marinus toads, fierce predators that will eat frogs, lizards, and even small birds, are native to South America but were introduced into
(A) are native to South America but were introduced into
(B) are native in South America but were introduced into
(C) are natives of South America but were introduced into
(D) had been native to South America but were introduced to
(E) had been natives of South America but were introduced to
为什么用will而不用一般现在时? 请牛牛们回答, 讨论中没有讨论过这个问题
先声明不是NN,
这个问题
1。我想不影响作题的划线部分,其实不用过多考虑。
2,ETS的意思就是想表示还没有发生的动作吗!要用一般现在时就是表示 一种客观现在存在的动作。
不知对不?
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