Раскройте скобки, употребите Present Perfect или Past Simple.
1. Sam … (do) all exercises this morning. 2. We … (do) this exercise two minutes ago. 3. My brother … (go) to the swimming pool since the first form. 4. They … (go) to the park yesterday. 5. I … (see) a horse last week. 6. My little sister … (not/ do) all exercises this morning. 7. I … (not/ do) this exercise yesterday.