When I ____(arrive) home yesterday my sister ___ (chat) with her

When I ____(arrive) home yesterday my sister ___ (chat) with her friends on the Internet. I told her I ___ (need) the computer to finish the homework I ___ (start) the previous day . Steve ___ (study) web designing in the USA for five years. He ___ (come) to Portugal next month to spend some days with his family, so he ___ (be) very excited about meeting his old friends.