I saw the students ------- (play) volleyball on the playgroud at that time

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/14 18:24:39

I saw the students ------- (play) volleyball on the playgroud at that time

playing (see sb.doing...看到某人正在……)

playing,那时我看到学生们正在操场上打排球

playing

playing(see sb. doing)