蓝书中215页第3题

chongov

3. In the last 10 years, the dropout rate among Black high school students fell substantially over the past decade, while the number of Blacks who attend college is more than twice what it was.
正确答案：（E）has fallen substantially over the past decade, while the numberof Blacks who are attending college are more than double what they were
我的答案：（D）has fallen substantially over the past decade, while the number of Blacks attending college is more than twice what it was at that time
E选项中，the number能与are搭配吗？

mofei23

不能~~答案不对

chongov

我感觉蓝书上的答案貌似很多都有问题