Present Perfect or present perfect progressive? 1)Colin, you (miss) already very many classes. 2)It's 11 p.m. . I (work)

1) Colin, you have already missed very many classes. 2) It\'s 11 p.m. I have been working on the computer since six and I haven\'t finished yet. 3) I have always wanted to make a tour of Spain. 4) The telephone has been ringing for almost a minute. Why doesn\'t someone answer it? 5) They have been building their house for a year and a half.