Could you tell us ______ happens when one student in class expresses a personal opinion _______ maybe upsets other students?

Please fold this piece of paper _______ a boat. [ ]

The Frenchman caught _______ a cold ______ he coughed day and night.[ ]

My grandmother found watching TV _________ but I enjoyed it very much..

Please write _______ me and tell me _______ yourself. [ ]