Answer:
My brother was writting the letter when my sister came in.
Explanation:
You might want to keep this little helpful tip in mind:
Passive voice: the object is being modified/done/etc. by the subject.
→ We can see how the letter is being written by the subject.
Active voice: the subject is the one doing/modifing/etc. the object.
→ We can see how the subject is writting the letter.
Hope it helped,
BiologiaMagister
It was a transformation of human life circumstances
the abstract noun of human is humanity
I am not 100% sure, but I want to say it is D
