I ____ have been there, but I ____ not find the time.
| A．could; must | B．must; could | C．should; could | D．should; would |
You have no idea how she finished the relay race ______ her foot wounded so much.
| A．for | B．when |
| C．with | D．while |
I hope you should achieve a ______ between your school work and your hobbies.
| A．difference | B．balance |
| C．connection | D．weight |
The coal miners ______ in the coal mine for 10 hours before we came to their rescue.
| A．had trapped | B．had been trapping |
| C．had been trapped | D．would have been trapped |
______ ，customers spend about 1.5 million pounds a day.
| A．In average | B．On average |
| C．In common | D．On the contrary |
His father came out of prison ______ Dickens have a chance to go to school.
| A．Not before; had | B．Only before; would have |
| C．It was until; had | D．Not until; did |