题干

Mr Philip has made ______ survey on students’ lunchtime, and ______ survey shows us a lot of problems.            


A:an; an

B:the; the

C:a; the

D:the; a

上一题 下一题 0.0难度 选择题 更新时间:2018-06-05 10:40:23

答案(点此获取答案解析)

C