Analysis:
The text describes a situation where someone was busy at a restaurant and then discusses Katie's attendance at school. The question is implied to be whether Katie was at school last week, and the answer provided is "No, she ..... She was sick." This suggests that the missing words in the question should complete the sentence indicating Katie's absence due to illness.
Based on the context, the most logical completion for the sentence "No, she ....." would be "wasn't". The subsequent sentence, "She was sick," further supports this.
Therefore, the original sentence fragment "..... Katie at school last week? - No, she ....." can be interpreted as:
"Was Katie at school last week? - No, she wasn't. She was sick."
The provided text from the image is a fragment, and the ellipses indicate missing words that would complete a coherent narrative or dialogue.
Answer: The missing word is likely 'wasn't'.