—Where is our English teacher? —She is in the classroom, _____ the exercises _________ the students have done at home.
If you are from doing something, you are officially prevented from doing it.
The school offers many _____ activities for the local students.
It is ______ that the noise around us is a(n) _______ to our health and well being.
We can broaden our horizons through _________ to new things.
Jack’s house has been broken into twice and now he takes________ against theft at any time.