Answer:
The/house/had/been/broken/into/by/someone/while/the/owners/were/on/vacation
Explanation:
While the owners were on vacation the house had been broken into by someone
I hope this helps
Answer :
Parallel structure is referred to as a situation in English grammar where a grammatical form or structure is repeated within a sentence. Each grammatical form, being similar in structure, thus creates a parallel structure. Parallel structure helps in establishing balance and flow in a sentence. The correct answer with parallel structure is :
The concert begins at nine; it ends at midnight.