Problem: How does the sentence end?

The head was weaving through the crowd and couldn't be missed. The
Answer: crowd was vast.

Problem: How does the sentence end?

The ball that was stolen from the child wouldn't fit in the bag because the
Answer: ball was too big.

Problem: How does the sentence end?

The author wrote notes on the writing pad with a pen until the
Answer: pad was full.

Problem: How does the sentence end?

Samuel could use paint to make a pretty picture but Benjamin could not.
Answer:
Benjamin got a bad grade in art class.