His health appeared _____________ better after taking medication regularly.

He failed ___________ enough money to pay for the new project.

Mrs. Weaver is a single parent. She has to work hard ____________ a living for herself and her family of five children.

What are you going to do if we refuse ______________ you?

Ronald had promised ___________ smoking, but he still did it.

The registration form needs ____________ completely by the participants.