这些句子怎么改成虚拟语气?

这些句子怎么改成虚拟语气?
n 1.You don’t have enough clothes,so you feel cold.
n 2.Our picnic was not perfect because there was some passing showers.
n 3.I got so much help from Ralph,so I did so well in the difficult examination.
n 4.I am engaged in writing an urgent report; that is why I can not go to the cinema with you.
n 5.We have been walking for a whole day and we are feeling so tired now.
n 6.Dylis has been practicing Chinese constantly and can speak it fluently.
n 7.You did not make everything clear to Keith and Joe; that is why they didn’t agree to join us in our research project.
n 8.I can’t buy the camera because I have no money with me now.
n 9.He has left his new photos at home; so he cannot show them to us now.