they are singing about freedom from racism, from all of the hate and they in my opinion are singing for justice for those girls
1.) <span>Because proctor doesn't have any proof of the affair and no witnesses were around
2.) </span><span>Because she wants him to be honest and tell the truth
3.)</span><span>Because he had an affair with Abigail and got caught/ their marriage is going downhill because he hasn't gone to make an attempt to end it</span>
a word of grattitude is happy and thank you
( i really did not get what you were asking)