Question

The earthquake damaged the city extensively. (Use : extensive )

Answer 1

the damage to the city made by the earthquake was extensive.

or

the damage made by the earthquake to city was extensive.

Answer 2

The damage caused by the earthquake to the city was quite extensive.

Apart from this, you can also write it as the damaged made by the earthquake to city was extensive.

However the meaning of these two sentences are same and you can just replacer the word extensively with extensive.

Even you can also write it as extensive damaged was caused to the city by the earthquake.