There are three ____ doing research work in the company.
I remembered _____ the door before I left the office, but forgot to turn off the lights.
He was admitted ____________the club after his tenth try.
Father _____ goes to the gym with us although he dislikes going there.
Professor Williams keeps telling his students that the future _____ to the well-educated.
You’ve failed to do what you _____ to and I’m afraid the teacher will blame you.