______debate concerning ______question is brought to______life again whether a person has the right to end his or her own life when he or she cannot live with an incurable dieases .
They always communicated with each other on the Internet, but they never met him _____________.
--The room is so dirty.____ we clean it? ---Of course.
.---Would you please save this seat for me? ----______.
---Thank you. ----_____.