问题补充:
单选题WhenIgotthere,Isawsomeboys_____ontheplayground.A.playingB.playedC.to playD.was waiting
答案:
A解析此题重点考察固定结构see sb doing sth 看到某人正在做某事
时间:2019-04-16 10:39:45
单选题WhenIgotthere,Isawsomeboys_____ontheplayground.A.playingB.playedC.to playD.was waiting
A解析此题重点考察固定结构see sb doing sth 看到某人正在做某事