题干

The number of the workers here ___ 200. Half of them ____under 30 years old.


A:are, are

B:is, are

C:are, is

D: is, is

上一题 下一题 0.0难度 选择题 更新时间:2011-03-21 03:46:54

答案(点此获取答案解析)

B