He had to pause from time to time to wipe the sweat from his forehead, because the air-conditioning system ____.
The flowers his friend gave him will die unless________every day.
-Everyone in my class passed the exam.-Oh,really? It________difficult.
He is in________control of the company. I mean,he is the manager and the company is in________control of him.the;/ B,/;theC.the;the D./;/
I'm very grateful for your help and hope that someday I may be able to do something for you________.
The workers have made some________the country.