they have had special cages made to protect them from these monsters中have had 是什么结构?我知道have sth done的结构,那么这里为什么还有had?是完成时?had相当于have done中的done?

They started immediately when they ( )breakfast.A.hadB.had have C.have hadD.had had Have they had any tea or milk? Have they had any tea or milk? they have just had some sandwiches . They have used all that they had.(改为同义句)They have ____ ____ ____ ____ they had. ___________ had enough time,they would have visited the Great Wall.A) Had they B) Have they C) Would they have D) If they They would have a rest if they time.A have Bhave ,had C would have D had,选什么,为何 怎么翻译这句英文 If they had had the resources ,they certainly would have. had they had time then,they would have studied English,too. () a sports meet last Sunday Yes ,they ().A.Did they have… didB.Did they have… hadC.Had they… hadD.Had they… did Every morning the patients are asked if()their temperature taken.A:they had had.B:they have had.选什么 改为感叹句they have had a good trip they have just had some sandwiches 对some sandwiches 提问 BBC一句话They don't have the infrastructure that they would have had.中that they would have had.怎么翻译,有什么用法吗? we've had our dinner;have they had “*”填写一个什么代词?并翻译一下词句. they would go out for a work if they ____ timeA have B have C would have D had Had they known what was coming next,they _ second thoughts答案是might have had.为什么不能用 must have had 猜测他们一定会 If they had taken my advice,they .A.had wonB.could wonC.should winD.could have won