_____into use last year,the hotline 114 is very popular with us now.

来源:百度知道 编辑:UC知道 时间:2024/06/24 09:04:42
_____into use last year,the hotline 114 is very popular with us now.(put)

遮体答案是put ,为什么不能用,having been put?
那么为什么我们可以说:
having been kept waiting for 2 hours, he didn't get hungry at all.
?

你已经区分出逻辑主语和动作之间是被动啊,那就应该用过去分词形式啊,ing是主动,ed是被动,不论是ing,having done,having been done,都是主动呀,别被那个be done弄昏啦,前面having才是关键~

问题补充:
那么为什么我们可以说:
having been kept waiting for 2 hours, he didn't get hungry at all.
?
逻辑主语是he,waiting是动作,再说详细一点he是wait这个动作的发出者,它们之间是主动,所以用ing形式,和上题是一样的思考路线,不过上题是电话线路与put,电话线路是put这个动作的被执行者,所以用被动,你看看有什么不妥么?