Never before in China __________ so carefully concerned about the food safety.A．

题干

Never before in China __________ so carefully concerned about the food safety.

A．people have been

B．have people been

C．are people

D．people are

上一题下一题 0.85难度单项选择更新时间:2011-11-01 03:07:20

小学学科试题库

初中学科试题库

高中学科试题库