The children ________ at the table when their mother cooked in the kitchen.A.wait B.are waiting C.were waiting
---Why do you keep the windows open on such a cold day? ---There are so many students here, so we want to keep the air nice and __.
--I hear you are not allowed to eat in class. ---Right. It’s one of the ___________in our school.
One of my teachers ____ an Englishman.
She will call you if she ____.
It is not right ____ in public places.