Problem: Continue the following story.

John poured the entire bucket of sand into the hole at the park until the 
OPTIONS:
- bucket was empty.
- hole was empty.
Here's how I want to continue it: bucket was empty.

Problem: Continue the following story.

It was necessary for Benjamin to write a note to remind themselves to do their homework but not for Christopher because 
OPTIONS:
- Benjamin had a brilliant  memory.
- Christopher had a brilliant  memory.
Here's how I want to continue it: Christopher had a brilliant  memory.

Problem: Continue the following story.

Jason was lifting weights and Donald wanted to help for 
OPTIONS:
- Jason knew he was lifting them incorrectly.
- Donald knew he was lifting them incorrectly.
Here's how I want to continue it:
Donald knew he was lifting them incorrectly.