Problem: How does the sentence end?

Robert asked Brian if he knows how to tie a windsor knot, but
Answer: Brian had forgotten.

Problem: How does the sentence end?

Ian learned CPR in their college health class but Jason never learnt the procedure.
Answer: Ian was calm and confident helping the heart attack victim.

Problem: How does the sentence end?

The man used the pole instead of the stick to brace the cabinet because the
Answer: pole was sturdy.

Problem: How does the sentence end?

Lindsey has started making a banana milkshake but needs help from Jessica, because
Answer:
Lindsey can't do it alone.