Problem: How does the sentence end?

The soup was better than the noodles because I used too much salt on the 
Answer: noodles .

Problem: How does the sentence end?

The drink was made when I poured it into the cup through the strainer. The 
Answer: cup quickly overfilled.

Problem: How does the sentence end?

Ben wanted to dye his hair blue or brown, but the 
Answer: brown color was too dull.

Problem: How does the sentence end?

He switched to taking notes in pen instead of on the laptop because the professor talked quickly and the 
Answer:
pen was quick.