15.----Ken, , but your TV is going too loud. -----Oh, I’m sorry. I’ll turn it down right now.
He's unlucky,and he's always suffering____________ luck one after another.
If you ____________ stop smoking, you can only expect to have a bad cough.
__________ , we'll come to see you again.
I think the doctor is able to cure of __________is called a suspect.
Let us not waste____________ time we have left.