Work starts every day at 7 a.m and goes onuntil late afternoon__________a break at midday.

I would appreciate _____if you can keep an eye on my dog while I am away.[ ]

Your classroom is so clean. —Of course. It ______ every day.

This kind of virus _______ via the bloodstream and causes ill health in a variety of organs.

He _____ his engagement just before the wedding.