waiting对吗?要双写t么?

waiting对吗?要双写t么? what a long time he's been waiting,isn't it?对吗,为什么 why not to do sth对吗?waiting she can't stand( ) waiting You haven't to waiting Don\'t keep me waiting Don't Keep Me Waiting 歌词 It isn't worth waiting for him, She can"t stand_____(keep)waiting Don't keep me waiting long Just waiting!Although it doesn't know! who are you waiting waiting for 有for么 为什么