---_______ do people cut down so many trees here?--- To get enough space for a new road.
Seeing their teacher _______ into the classroom, they stopped _______ at once.
This pair of shoes ________ hand, and it _______ very comfortable .
----Your grandfather is always full of_______. Do you know the secret?----Well, he takes exercise every morning and keeps healthy diets.
----My son always goes to school without having ______ breakfast.----It is ______ unhealthy habit. You must ask him to change it.
I’m allowed to go out with my friends ________ school nights, but I have to be home _______ 9:00 p.m..