翻译3句话

I have cotacted with her about the gallery last time. she called ***,and cellphone***.She will be free,you can contact with her in advance.Sorry i can not go with you for some reason. It will be ok that you just tell her i am her studnet.

关于上次画廊的事情，我已经和她联系好。
I have got along with her about the picure shop 's things last time .
她叫××，手机：×××××。
She is called ...cellphone number :
这个星期天她有空，你可以预先和她联系。
She will have time this week ,and you can contact with her first .
对不起，我这个星期有事不能一起前往。你就说我是她的学生。
I am sorry ,i can't go with you this week .You can tell her that i am her student .

I have contacted with her about the gallery last time we talked.
Her name is...
and her phone number is...

She is free this Sunday,and you can contact with her beforehand.

And I'm sorry to say that I can't go with you together because I have something to do then.
Just tell her I'm her student,she will understa