Раскройте скобки, употребляя глаголы в Past Simple или Present Perfect:
We (to test) the new model, (to improve) it and then (to show) it at the exhibition.
- have tested, have improved, have shown
- have tested, have improved, showed
- have tested, improved, showed
- tested, improved, have shown
- tested, improved, showed
Для просмотра статистики ответов нужно
залогиниться.