关于not only but also 问题

traviszhu

not only... but also ...中间可以用逗号分开吗？

sophiacxl

why not???

OG里就可以看到这样的例子，如下：

OG11-SC52．

The winds that howl across the Great Plains not only blow away valuable topsoil，thereby reducing the potential crop yield of a tract of land，and a1so damage or destroy young plants．
    (A)  and also damage or destroy
    (B)  as well as damaging or destroying
    (C)  but they also cause damage or destroy
    (D)  but also damage or destroy
    (E)  but also causing damage or destroying
    Idiom
    This sentence uses the construction not only x but also y：x z and y must be grammatically parallel．In this sentence，not only appears directly before the first verb，so but also should appear immediately before the second set of verbs．The winds．．．not only blow…but also damage or destroy．
    A  And also is not the correct idiom；not only 1s followed by but also or also．
    B  As well as does not complete not only；damaging or destroying flee not parallel to blow．
    C  The subject(they)does not need to be repeated；cause damage is not parallel to blow  and would require the preposition to before young plants．
    D  Correct．In this sentence，not only is properly followed by but also，and damage or destroy is parallel to blow．
    E  Causing damage or destroying is not parallel to
    The correct answer is D．