I saw him into the bedroom one hour ago a.go b.going c.to go d.went

I saw him into the bedroom one hour ago a.go b.going c.to go d.went
I saw him into the bedroom one hour ago a.go b.going c.to go d.went

I saw him into the bedroom one hour ago a.go b.going c.to go d.went
I saw him going into the bedroom one hour ago
选b see sb.doing sth.看见某人正在做某事
一个小时前我见他走进了卧室

看见某人做某事
see sb do sth（看了整个过程，比方说看了整一场篮球赛：I saw him play basketball.)
see sb doing sth(看了某一时刻发生的事情，I saw him playing basketball.是某一时刻经过篮球场时看到的。）

答案：A