Question

Let the windows be closed ....change it in active voice

Answer 1

close the windows
hope it helps you

Answer 2

Answer:

Close the windows.

Explanation:

The sentence is given in passive voice, which is a grammar (person) formation, where the subject of the sentence (not applicable in this case) expresses the predicate (windows) of the active verb (closed), that is the person or thing that is part of the action or has its position changed.

When this sentence changes to active voice, which is the form of a verb (closed becomes close) in which the subject (non-existent) is usually the person or thing part of the action and that which can take a direct predicate: windows.