The proposed urban development zones do not represent a new principle; it was employed in “Operation Bootstrap” in Puerto Rico.
(A) do not represent a new principle; it
(B) represent not a new principle, but one that
(C) are not a new principle; the same one
(D) are not a new principle, but one that
(E) are not new in principle; it
答案选b。对了答案知道b选项用了not..but的并列,那其他选项错在哪里?d也用了not..but,为什么也不对呢?谢谢!!
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谢谢青鸟!
原句中划线部分的谓语动词一般都是正确的吗?用BE动词作谓语动词不行吗?
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