80. (28763-!-item-!-188;#058&004022)
Although at one time children's programming had been limited to a few hours a week, now, however, there are at least four cable networks that dedicate themselves entirely to shows produced specifically for children.
(A) Although at one time children's programming had been limited to a few hours a week, now, however, there are at least four cable networks that dedicate themselves
(B) With children's programming having been limited at one time to a few hours a week, now at least four cable networks have dedicated themselves
(C) Once limited to a few hours a week, there are now at least four cable networks with children's programming that dedicate themselves
(D) Children's programming was once limited to a few hours a week, but now there are at least four cable networks dedicated
(E) While children's programming had once been limited to a few hours a week, at least four cable networks are now dedicated
答案D, 请问为什么E错呢？另外，我感觉这道题目应该没有很明确的转折关系啊。用but是不是不太好？有点像OG里面museum那道题的感觉，请指教
请问E的后半句为什么要有连词连接呢？前面有while这个弱转折语气词已经可以连接两个句子了啊，就好比athough 句子A, 句子B
请指教，谢谢
请问E的后半句为什么要有连词连接呢？前面有while这个弱转折语气词已经可以连接两个句子了啊，就好比athough 句子A, 句子B
请指教，谢谢
不好意思，是我错拉，眼花拉没看到while
我认为E有2处错误：1。句子重心发生改变：将原句的强调部分cable networks 改为dedicated
2。时态错误，once表示过去时
不好意思，是我错拉，眼花拉没看到while
我认为E有2处错误：1。句子重心发生改变：将原句的强调部分cable networks 改为dedicated
2。时态错误，once表示过去时
我觉得这两个错误不是很令人信服。呼唤nn出来解释一下。
In Longman DoCE:
once
3. at some time in the past, but not now
Sonya and Ida had once been close friends.
She and her husband had once owned a house like this.
E中关于dedicate的用法，我觉得也说得过去。
In Longman DoCE:
dedicated (adj)
dedicated to
The Woodland Trust is dedicated to preserving our native woodland.
Mami mami Hong，nn快出现。
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