Cannot is formal, while can't in informal.
"Cannot" and "can not" are interchangeable, but when you are asking question for example:
"why can't I...", you can also say "why can I not..." (which is more formal), but you can't say "why cannot I..."
In Ancient times, sickness was thought to be caused by an excess of blood. Therefore, doctors would cut into their patients and let some of the blood out to help cure them. This theory advanced into thinking that the human body needed all of its "humors" to be balanced: blood was one of the humors so if the doctor thought you had an imbalance, they would 'let' some of the blood out.
Answer:
Though, when you walk on the walls, which is what remains of the mighty fort, you may not see the red color it refers to. Fort Walls of Lal Kot.
Answer:
He seemed in his heart to reproach her for being too perfect, and because there was nothing to reproach her with.
Explanation:
It is a simile. A simile is comparing two things with like or as. Example: "They were as quiet as a mouse". Now never confuse this with a metaphor which doesn't use like or as, but still compares two things. Example: "She is a walking encyclopedia" . This is telling you indirectly that she is a very smart and talkative person. A simile would tell you directly
