sb is doing sth和sb doing的区别?
sb is doing sth和sb doing的区别?
listen sb.doing 和listen sb do sth.的区别
help sb with sth,help sb for doing sth和help sb do sth 的区别?
英语keep短语问题keep sb doing sth 和 keep sb from doing sth 的区别!
see sb.do sth和see sb.doing sth.区别
leave sb doing sth 和keep doing sth区别
notice sb.do sth.; notice sb.doing sth.和notice sth.done的区别
keep sb./sth.doing sth.和keep sb./sth. +形容词的区别 求例句
keep sb/sth adj.和keep sb/sth doing sth的区别
【区别】 to sb for doing sth 和 for sb to do sth 的区别 = =
watch sb do sth和watch sb doing sth的区别和造两个句子
see sb.do sth.和see sb.doing sth.的区别,附例句