Since Rachel has been leaning forward throughout the evening, Rachel, I believe was being lustful to Matthew in a seductive way and in human first impression Matthew leaned back in his chair. but don't take my word for it.
Answer:
The magenta and sky blue sentences are the answers.
Magenta) Admittedly, we cannot reuse or recycle all of the materials we use in our daily lives.
and
Sky Blue) My opponent would use these limitations of our ability to recycle to counter my points about the materials we can recycle
Both these sentences are countering the speaker's claim
In this sentence it is an adverb :)
The answer is C. Please pay attention in SAT/ACT prep you won't believe how useful it is in the future, take it from someone who just took the SATs.