Answer:
future perfect progressive
Explanation:
she will have been studying before the exam.
I dint follow... is this an open ended question? or is it multiple choice? and to litterally kill one is simple. grab it, and kill it.
The sentence that contains a faulty parallel structure; I suggest that you take additional courses and working on a theoretical project. The correct answer is B.
I would love to answer this question but it looks like you need to attach a passage to answer this question. Btw the other answer that other person gave you was just to get points there is no file.