Explanation:
Macbeth, Lady Macbeth and the three witches are all to blame for the tragedy that is “Macbeth”, Lady Macbeth through convincing Macbeth, Macbeth for following his ambition more than his conscience and the three witches for putting the idea of being king in Macbeth's head.
A lot of my mail are delivered to my neighbour’s house
As it says a lot word
There should be Their
Explanation:
This is so because you are referring to a person or persons not an object or non living thing.
1. Beginning
2. I'm not sure, maybe to give rhythm to the sentence.