There are students waiting in the hall, ?
A. hundreds of; aren’t they
B. four hundred; aren’t they
C. four hundreds; aren’t there
D. hundreds of; aren’t there
网友回答
A. hundreds of; aren’t they
B. four hundred; aren’t they
C. four hundreds; aren’t there
(答案→)D. hundreds of; aren’t there
解析：hundreds of 许多，hundred表示具体数字时，后面不加s。There be 句型中,反义疑问部分必须为be 动词+ there。