—How amazing it is that astronauts are exploring outer space!—It's a challenge, I guess, ______ man against nature.
____, I got better and returned to work.
The gasoline . Let’s fill the car up at the next gas station.
____ is our belief that improvements in health care will lead to a stronger, more prosperous economy.
-Does the young man standing at the gate_____ the car? -No. The car is _____ his father.
If you had told me in advance, I ___ him at the airport.