They were renovating the building in 2020.
They were renovating the building in 2020.
They did renovating the building in 2020.
They did renovating the building in 2020.
They renovated the library building in 2020.
They renovated the library building in 2020.
They had renovated the library building in 2020.
They had renovated the library building in 2020.
Correct Answer:
They renovated the library building in 2020.
They renovated the library building in 2020.