Question

what do they build changing in passive voice
what do they build
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Answer 1

$\huge\fbox \red{A}\fbox \green{N}\fbox \purple{S}\fbox \orange{W}\fbox \red{E}\fbox \blue{R}$

What was built by them?

$\sf{ \blue{ɧơ℘ɛ  \:  ɬɧıʂ \:    ɧɛƖ℘ʂ \:   ყơų}}$

Answer 2

Answer:

A house is build by them I hope this helps for you