Identify the passive form of the given sentence.
When did they build these houses?
AWhen they built these houses?
BWhen were these houses built?
CWhen these houses were build?
DWhen did they built these houses?
Identify the passive form of the given sentence.
When did they build these houses?
AWhen they built these houses?
BWhen were these houses built?
CWhen these houses were build?
DWhen did they built these houses?
Related Questions:
Convert the sentence provided below from its passive voice structure to an active voice structure:
It has been alleged that confidential data was being leaked by insiders within the firm.