Измените глагол в предложениях в зависимости от событий: His sister (develop)

1. His sister has been developing new alloys at the research laboratory all the morning today. - Present Perfect Continuous.
2. His sister developed new alloys at the research laboratory five years ago. - Past Simple.
3. His sister develops new alloys at the research laboratory every year. - Present Simple.
4. His sister will be developing new alloys at the research laboratory for several hours next week. - Future Continuous.
5. His sister had developed new alloys at the research laboratory before we came to help her yesterday. - Past Perfect.