Question

Change into passive voice past perfect...
1. who had invited you to the feast?
2. He had Received your letter when I met him.​

Answer 1

Answer 1:

The answer is ‘By whom were you invited to the feast?’

Answer 2:      

The answer is ‘When I met him, he had received your letter.’    

Explanation:

The above two are the passive voice for the sentences.  

In active voice, the subject will be in the beginning of the sentence and the object will be at the end.  The tense of the verb will change accordingly. In passive voice, the object of the sentence will be at the beginning and the subject will be at the end. The tense of the verb will change accordingly.

Answer 2

Explanation:

we should keep our promises