D. maybe because it characterizes him
You don't have to answer what I answered
Answer:
His response was so Aggravated that i though he must be angry at my question
His response was so Serious that i though he must be angry at my question
"she" would be the pronoun.
You can rewrite this question as "She is your best friend?"
So in that case, "she" would be the subject.
In English, you just switch around "is" and the subject to make a question and make it sound Englishy
PS in Italian (and probably other languages) you would just say "She is your best friend?"
Answer:
In Gerund form. (+ing).
Explanation:
This occurs since the tenses must be structured like this:
FUTURE PROGRESSIVE:
I will be ______________(VERB in gerund) +ing by tomorrow.
PRESENT PERFECT PROGRESSIVE:
I have been ____________(VERB in gerund) +ing all day.
FUTURE PERFECT PROGRESSIVE:
I will have been___________(VERB in gerund) + ing tomorrow by noon.