25.—Why not open the windows to let_____cool air in? —I'd rather you didn't_____air in our town is terribly polluted. A.a;The B/;The C./;/ D.the:/
________ is to do good all one's life and never do anything bad.
They would have fixed the telephone yesterday _________ it was a holiday.
It's uncertain ________ the experiment is worth doing.
Do you know ________ he expects will give us a talk
He insisted that he ________ in good health and _______ to work there.