泾河龙王怎么死的:为什么不用had lasted?

来源：百度文库编辑：杭州交通信息网时间：2024/05/29 04:48:45

The fire has lasted four hours before it was completely controlled.

Before+过去式，应该是过去的过去吧，为什么不用had lasted?

has lasted完成时。如果要用过去式可以说the fire lasted four hours.
had lasted是过去完成时了，要在整个时间放在过去时才可以。

答案错了，就是应该用had lasted,的确是过去的过去，

没错，答案的问题

为什么不用had lasted? 这句为什么用had better ？而不用would rather？ we haven't had a relationship that has lasted longer than a Mento什么意思 I'm afraid no one can predict_____?A, where our teacher had gone B,how long the meeting lasted You ___ your temper but that's OK. 横线上为什么不用had lost She had no luck finding a job.为什么用LUCK不用LUCKY I'd rather he had it from me on Saturday里的had,为什么不用原形?这里是哪个虚拟句式？？ The ehemy had no choice but to lay down their arms and give in . and 后面为什么不用过去时？ 29 ___ (catch) the last bus,he had to go home by taxi.为什么用NOT having caught 不用Not have caught We had neither money nor food.为什么用的是HAD呢