Answer:
The sentence that shows that Lisa has no empathy for her father is, "it's as if we were to blame! I am sorry for papa, but why should we be tortured?"
Step-by-step explanation:
This is a scene of a father that has resigned to a fate to die due to his chronic illness. His wife and daughter tried to console him so as to recover, but he believed in his ill fate to die. Death was used to soothe his feelings, and clamored for its timely occurrence. Lisa, was inconvenienced more than anything else about her father's suffering because it was a form of constrain to her.
Her statement, "it's as if we were to blame! I am sorry for papa, but why should we be tortured?" depicts that she had little or no empathy about her father's suffering.