But for the help you gave me, I __________ the examinations.
| A．would have passed | B．would pass |
| C．wouldn't have passed | D．wouldn't pass |
We should pay attention ____ to industry ____ to agriculture.
| A．either, or | B．neither, nor | C．not, but | D．both, and |
My sister is expecting me,____ I must be off now.
| A．however | B．or | C．so | D．otherwise |
Do not make the same mistake ____ I did.
| A．so | B．as | C．like | D．that |
Hurry up, ____ you'll be late.
| A．or | B．and | C．so | D．yet |
The worker hunted for jobs in New York for months,____ he could not find any work.
| A．and | B．yet | C．or | D．and but |