The answer could actually be "climb" or "was climbing," but traditionally should be "climb." Hope this helps :)
Answer:
She fears that Macbeth won't have the ruthlessness needed to kill Duncan in order to fill the second prophecy.
Explanation:
Hope this helps!
So, Dr. Faustus is an embodiment of curiosity gone wild. His blase attitude towards humanistic science is, however, some kind of a scientific decadence: he casts away philosophy and law, to embrace magic, as a relic of medieval obsession over mysticism. In this regard, he is a subversion of the Renaissance Man. He thinks he has already learned all there was to learn about this world, so now he yearns for another kind of knowledge - esoteric, otherworldly, knowledge that isn't exactly a knowledge because you don't have to study long and hard for it, you just have to sell your soul to Lucifer.