Four days

Yan Zhao did not understand what Su Wan meant by the word appraisal. She had already brought the street what was the need to appraise it? He was a bit confused and wanted to ask Su Wan what she meant by appraising the street. However, he thought that it was a bit rude and did not say anything for a while but then his curiosity got the best of him and then he couldn't stop himself from asking, " Madam Su what do you mean by appraising the street? Are you saying that if you are not satisfied with it then you will abandon it?" 

If so then he had to say that Su Wan was really reckless.