Find time to take a walk regularly，__________ you will feel refreshed.
| A．or |
| B．but |
| C．and |
| D．so |
My computer is in good __________ and you can enjoy yourself on it.
| A．instruction | B．position | C．condition | D．situation |
—Have you finished your program,Yang Wei?
—I’m afraid I __________ forgot about it.
| A．totally | B．naturally | C．extremely | D．probably |
—What was Kelly Chan’s concert?
—It __________ everyone present.It’s a pity you’ve missed it.
| A．represented | B．satisfied | C．shocked | D．delighted |
Investigators are still trying to determine the __________ of the accident.
| A．cause | B．problem | C．reason | D．puzzle |
The collapse of the World Trade Center has put US economy in a difficult __________.
| A．occasion | B．case | C．situation | D．background |