It's great fun ( )with it.A.playing B.played c.play D.plays讲清理由
问题描述:
It's great fun ( )with it.A.playing B.played c.play D.plays
讲清理由
答
A doing 结构做真正的主语 it 是形式主语
答
playing
句中已有谓语,故此处只可用to play 或playing