Problem: How does the sentence end?

To properly diagnose this condition, the doctor removed the stethoscope and got the thermometer, as the 
Answer: thermometer was vital in finding the symptoms.

Problem: How does the sentence end?

Joseph served Kyle a lot of meat at the dinner last night because 
Answer: Joseph was cooking.

Problem: How does the sentence end?

Sandra wanted to put the new painting in the foyer of her home, but the 
Answer: painting wasn't dry yet.

Problem: How does the sentence end?

The diet of Victoria is worse than the one of Kayla, so 
Answer:
Victoria 's nails probably look worse.