Użyj Past Simple lub Present Perfect.

1. I (not eat) before.
2. (You/finish) watching that silly sitcom? I'd like to watch the news now.
3. It was a crazy morning yesterday. (I/miss) the bus to school and everything went wrong after that.
4. My friend (be) out of work since his company (close) down a few weeks ago. In fact, he (go) to one yesterday, but he (not call) me yet to talk about it.
5. My friend (lose) his job a few months ago, and he (be) out of work since then. At the beginning, he (feel) quite optimistic about finding a new job, but up to now he (attend) very few job interviews and still (not find) a job.