—Another cup of coffee? That’s your third since lunch.—Yeah, well, I ____ all night preparing for my history exam. I can hardly keep my eyes open.
The university is saving $ 300,000 per year by its energy ______ efforts.
— A US pilot says he saw a UFO in the shape of triangle, moving very low over bushes two days ago. — ______, but I didn't think that’s true.
— I really can't put up with what he said yesterday. —______. He was just joking.
So far, almost every possible means ______to provide accommodation and medical rescue for the people in the flood-stricken area.
______ at his final score, he decided to treat himself to a big dinner.