Can someone help please

Based on context, the word “insoluble”most likely means?

How can you sit there calmly eating muffins when we are in this horrible trouble i cant make out you seen to me to be perfectly heartless who said this quote

In which sentence is the subjunctive mood correctly used? if she were impatient, she would not be suited for this work. they are ready to go to work now. she was impatient to get to work on time. he listens to instructions very carefully when at work.