Question

The hills are covered with wild dahlias.

Answer 1

Hey Dear !
_________

I think you have asked for the change in Voice. So, Here I am changing the given sentence into Active Voice.

Indirect Speech - The hills are covered with wild dahlias.

Active Voice- Wild dahlias cover the hills.

Explanation-  The object has been made the subject and the subject has been made the object of the active sentence. In an active Voice the subject is active - 'Dahlias' cover the hills....the covering of the hills is done by the active subject 'dahlias'.
_________________________________________________
Any problem in understanding, feel free to ask.

Answer 2

Answer:

the dahlias cover the hill