先别急着采纳哈,我来给你做：2.I`ve already seen this film.
3.I`ve been doing this course since a week ago.
4.Joy still hasn`t used her new mobile.
5.I`ve just told you that.
6.You`ve had that computer for nine years.那台电脑是05年买的,那么用for的话距离现在就是九年出一点了.
7.Your friends haven`t called you yet.上面的翻译有错误的,a 后面的单词是不可以加s的.