问题补充:
—Chinese people are worried about the food they eat these days.
—Yes, the food safety is a serious in our country. We should try to solve it.
A. subject
B. program
C. problem
D. opinion
答案:
A. subject
B. program
(答案→)C. problem
D. opinion
解析:subject科目;program程序,计划;problem问题,难题;opinion意见,主张。句意:这些天来中国人很担心他们吃的食物。——是的,食品安全在我国是个严重的问题。我们应该努力解决它。计划语境可知选C。