but these has not had any effectJasper has put up 'No Parking' signs outside his gate,but these have not had any effect.在这句话中,为什么前后都是完成时?后半句not had any 这个怎么理解?为什么还有一个had?

He has not had a night ___for two weeks ,but he still fell__中填a.off,happy b.away,happily c.off,ha what has legs,but can not walk Jasper has put up no parking signs outside his gate,but these have not had any effect.为什么前后两句都用完成时. but these has not had any effectJasper has put up 'No Parking' signs outside his gate,but these have not had any effect.在这句话中,为什么前后都是完成时?后半句not had any 这个怎么理解?为什么还有一个had? but,these books are not mine .急,马上就要 Jasper has put up no parking signs outside his gate,but these have not had any effect.Jasper has put up no parking signs outside his gate,but these have not had any effect.逗号前这句是什么时态?后面的这句应该是现在完成式的否 I'm disappointed in loveXiaoyan,I have not saw u for 58 days.in these days,i missed u every day.Do u know?i know u don't want to come back,but i expected u back day by day.Do u know i my heart is broken,but u don't care my feeling anymore.i know u ha 英语作业上不懂的地方,1根据句意和汉语的提示,写出正确的单词：1 This is _____(我的）jacket,but these shoes are not____(我的).2 That's not ________(他的） ball.It's__________(我们的）.3 Joe's cat is very cute.It ha what has four legs one back but can not walk? tom has a baseball,but he ( )(not have) a basaball What has a foot,but can not walk?还有没有？ what has an eye but can not see? What has a tongue but can not talk? What has 100 legs but can not walka broom (1/2)Is John coming by train?He should,but he＿＿not.Ha likes dri ok~but you not in my dream ,you aways when i surf the internet i can see you ha 英语翻译i could not deceive myself,i thought that i might not care about has occurred these matters,perhaps imight accept itself to do such matter,but i actually discover me not to beable nom,i make mistakes,but the matter had already occurred,i It has tow big eyes,but it can not see.It has two ears,but it can not hear.