— Have you finished your project?— Not yet. I’ll finish it if I ____________ ten more minutes.

Our classroom _____ every day, so it’s very clean.

–How clean and tidy your bedroom is!” –Thank you. It ____ every day.

—Excuse me, what’s this for?—It’s a cleaner and it       to pick up dirt.

Don’t worry. The children always work hard and the teachers _______ in class.