1. When we (go) ....... to see them last night, they (play) ..... cards since six o'clock
2. He (know) ...... her along time before he finally (get) ..... married to her
3. By the time you get black, I (finish) ......... all my correspondence and then I(help) ...... you with yours
4. After she (work) ...... at the hospital for two years, she (decide) ...... to give up the job
