In the last ten years , the dropout rate among Black high school students fell substansially over the past decade, while the number of Blacks who attend college is more than twice what it was .
A fell subsatansially over the past decade ,while the number of Blacks who attend college is more than twice what it was .
B fell substantially , while the number of Blacks attending college is more than double what it was at that time
C has fallen substantially ,while the number of Blacks attending college has more than doubled
D has fallen substantially over the past decade, while the number of Blacks attending college is more than twice what is was at that time .
E has fallen substantially over the past decade ,while the number of Blacks who are attending college are more than double what they were
答案e为什么the number 做主语,用are 啊?
这个are应该是跟在Blacks后面的吧.
个人理解.
请楼主在标题里面给出题目出处，方便大家回帖，方便后人查询，谢谢啊
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明显答案不是E
E选项over the past decade和in the last ten years重复, 且the number of...谓语用单数
应该是C
对啊，重复太明显了。
我也觉得是C
我觉得：
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首先，主句前面有In the last ten years，已经明确了时间概念，且表明肯定是一般现在时，所以A,B 错
In the last ten years , the dropout rate among Black high school students fell substansially over the past decade, while the number of Blacks who attend college is more than twice what it was .
A fell subsatansially over the past decade ,while the number of Blacks who attend college is more than twice what it was .
B fell substantially , while the number of Blacks attending college is more than double what it was at that time
C has fallen substantially ,while the number of Blacks attending college has more than doubled
时态正确，而且 more than doubled 简介明了
D has fallen substantially over the past decade, while the number of Blacks attending college is more than twice what is was at that time .
over the past decade重复，而且，原文意思是说，在过去的十年中，大学生数量增长了一倍还要多。这里，最后有一个at that time，在那个时间，意思上是应该指 十年前 的那个时间点，但这里并没有时间点。而且，后面太罗嗦。
E has fallen substantially over the past decade ,while the number of Blacks who are attending college are more than double what they were
比D好得多，中心词 the number of 。。are ，错，后面 than。。what they are，这里应该是 number 和number比，而they 只能指代 blacks，所以错。
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不知道对不对。。
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