Our teacher will        us        the factory next week.

It took the firemen six hours to________ the fire.

They___________ there last Saturday.、

We must         the teacher says in class.

You used to be a top student. You shouldn’t ___________.

---_______ does harm to your health. 
--- I will ______ and live a healthy life.

Amy ____ after school every day.

Do you know how to ____ this word in English?

What ____ Tom and Jim usually ____ on Sundays?

There ____ lots of milk in the cups.