Choose the correct passive voice: We received a cordial welcome from our host.

A cordial welcome was received by us from our host.

A cordial welcome will be received by us from our host.

A cordial welcome was being received by us from our host.

None of these

The sentence is in the past tense, so the correct passive voice is "was received."

It correctly changes the object "a cordial welcome" into the subject of the sentence.