Hyperbole is used when Shakespeare is speaking about his mistress. He is actually over exaggerating how ugly and repulsive his mistress is. He is saying that she doesn't have a lovely blush to her face when he says "But no such roses see I in her cheeks." He is also saying that her breath is awful when he contrasts her breath to nice perfume and says "than in the breath that from my mistress reeks."
A.) I was thrilled to find my keys they had been lost since yesterday.
This is a "fused sentence" or also known as a run-on sentence.
