I'm sorry i kept you___at the park gate so long.A:wait B:waiting C:to wait D:waited
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![I'm sorry i kept you___at the park gate so long.A:wait B:waiting C:to wait D:waited](/uploads/image/z/11741545-1-5.jpg?t=I%27m+sorry+i+kept+you___at+the+park+gate+so+long.A%3Await+B%3Awaiting+C%3Ato+wait+D%3Awaited)
I'm sorry i kept you___at the park gate so long.A:wait B:waiting C:to wait D:waited
I'm sorry i kept you___at the park gate so long.A:wait B:waiting C:to wait D:waited
I'm sorry i kept you___at the park gate so long.A:wait B:waiting C:to wait D:waited
keep 后只接doing ,没有to do的形式.
keep sb.doing
这就是英语里的语法,外国人平时就这么用.
keep doing sth.一直做某事
kept 是 keep 的过去式
keep doing 固定用法 表示:一直在做某事,keep waiting, 一直在等
keep somebody doing something