Active voice change to possive voice
1.corona virus affected many countries.
2.exercising regularly will make our bodies healthy.
3.the government has given grants to support.
4.anna had sent the results of her medical analysis.
5.betty is making a project about contagious diseases.
Active means the subject is doing the action of the verb:
The Coronavirus affected many countries.
Passive means the subject is RECEIVING the action of the verb:
Many countries have been affected by the Coronavirus.
You try the other four, and I'll check them for you.