here are the result of the student activity survey at Green HighS_英语解答

here are the result of the student activity survey at Green HighSchool
为什么句中的activity不用复数形式,这本来是一道完型填空,填activity的真确形式,请大家说明原因?

人气：171 ℃　时间：2020-02-05 01:59:22

解答

个人觉得activity此处做survey的定语,例如苹果树,the apple tree.